The perfect blend of mobility and simplicity, the Thuraya SatSleeve is the smartest, fastest and simplest way to transform your phone into a satellite smartphone. Thuraya SatSleeve provides access to phone calls, emails, instant messages and popular social media apps in satellite mode across 161 countries within Thuraya’s coverage network.
This document provides an overview of satellite services. It discusses how satellites work, orbiting the earth to collect and transmit information via different frequency bands. Satellites are important for research, collecting data, global positioning, weather prediction, tracing vehicles, and controlling systems. The history of satellites is reviewed, from early theories to the first satellites launched in 1957.
Satellite communications ( grupo redes y_articulos_upds redesyarticulosupds.b...Caleb Lento Violento
This document provides an overview of satellite communications, including how satellites work, different types of satellite orbits like GEO, LEO, and MEO, frequency bands used, and capacity allocation methods like FDMA and TDMA. Satellites act as relay stations, receiving uplinks from earth stations and sending downlinks. Advantages include wide coverage areas, while disadvantages include high launch costs and bandwidth limitations. Different orbits trade off factors like signal strength, coverage area, and visibility duration.
The document discusses satellite communications, including the basic components and orbits of communication satellites, how they are used to transmit signals, and some of their applications such as television, radio, and mobile phones. Key orbits discussed include LEO, MEO, and GEO orbits, and the advantages and disadvantages of each for communication purposes. The document also covers frequency allocation and some of the challenges of using satellites for communication.
Satellite Telecommunications
Overview
- Satellite history began in 1911 with the concept of radio propagation through space. Major milestones include the first geostationary satellite theory in 1945 and launches of early satellites by the US and USSR in the late 1950s.
- Satellites can be in low, medium, or geostationary orbits and provide services like mobile communication, navigation, weather monitoring, and television broadcasting.
- VSAT systems use small satellite dishes under 3 meters for fixed satellite services. Different frequency bands like C-band and Ku-band are used depending on antenna size and coverage needs.
- Common satellite access technologies include SCPC, TDMA, MF-TDMA, DVB,
Vikas submitted this project report on satellite communication to his instructor Mr. Praveen Jain. The report begins with an introduction and then discusses the history of satellite communication, the different types of satellite orbits, the components and working of satellites, their power systems, and applications such as television broadcasting, internet access, and military uses. It also covers future developments including more powerful satellites with longer lifespans. The report concludes by comparing the Astrolink and Cyberstar satellite communication systems.
Satellite communication plays a vital role in global telecommunications. A satellite is an object that revolves around another object due to gravitational forces. There are two types of satellites: passive satellites that simply reflect signals, like the Moon, and active satellites that have onboard processing equipment to act as repeaters. The first artificial satellite, Sputnik 1, was launched in 1957. Key components of satellite communication systems are the space segment including the satellite, and the ground segment including earth stations. Satellites can be in either geostationary orbit or non-geostationary orbits, and provide important one-way and two-way communication services with many advantages.
Satellite communication systems allow signals to be transmitted and received via satellites orbiting Earth. Key elements include the space segment consisting of satellites and the ground segment of earth stations. Satellites transmit signals in various frequency bands. Applications include internet access, environmental monitoring, disaster management, television and radio broadcasting, broadband internet, and military communications. While satellites provide global coverage, disadvantages include high capital costs and signal propagation delays. Satellite technology is crucial for many areas of modern society and communications.
The perfect blend of mobility and simplicity, the Thuraya SatSleeve is the smartest, fastest and simplest way to transform your phone into a satellite smartphone. Thuraya SatSleeve provides access to phone calls, emails, instant messages and popular social media apps in satellite mode across 161 countries within Thuraya’s coverage network.
This document provides an overview of satellite services. It discusses how satellites work, orbiting the earth to collect and transmit information via different frequency bands. Satellites are important for research, collecting data, global positioning, weather prediction, tracing vehicles, and controlling systems. The history of satellites is reviewed, from early theories to the first satellites launched in 1957.
Satellite communications ( grupo redes y_articulos_upds redesyarticulosupds.b...Caleb Lento Violento
This document provides an overview of satellite communications, including how satellites work, different types of satellite orbits like GEO, LEO, and MEO, frequency bands used, and capacity allocation methods like FDMA and TDMA. Satellites act as relay stations, receiving uplinks from earth stations and sending downlinks. Advantages include wide coverage areas, while disadvantages include high launch costs and bandwidth limitations. Different orbits trade off factors like signal strength, coverage area, and visibility duration.
The document discusses satellite communications, including the basic components and orbits of communication satellites, how they are used to transmit signals, and some of their applications such as television, radio, and mobile phones. Key orbits discussed include LEO, MEO, and GEO orbits, and the advantages and disadvantages of each for communication purposes. The document also covers frequency allocation and some of the challenges of using satellites for communication.
Satellite Telecommunications
Overview
- Satellite history began in 1911 with the concept of radio propagation through space. Major milestones include the first geostationary satellite theory in 1945 and launches of early satellites by the US and USSR in the late 1950s.
- Satellites can be in low, medium, or geostationary orbits and provide services like mobile communication, navigation, weather monitoring, and television broadcasting.
- VSAT systems use small satellite dishes under 3 meters for fixed satellite services. Different frequency bands like C-band and Ku-band are used depending on antenna size and coverage needs.
- Common satellite access technologies include SCPC, TDMA, MF-TDMA, DVB,
Vikas submitted this project report on satellite communication to his instructor Mr. Praveen Jain. The report begins with an introduction and then discusses the history of satellite communication, the different types of satellite orbits, the components and working of satellites, their power systems, and applications such as television broadcasting, internet access, and military uses. It also covers future developments including more powerful satellites with longer lifespans. The report concludes by comparing the Astrolink and Cyberstar satellite communication systems.
Satellite communication plays a vital role in global telecommunications. A satellite is an object that revolves around another object due to gravitational forces. There are two types of satellites: passive satellites that simply reflect signals, like the Moon, and active satellites that have onboard processing equipment to act as repeaters. The first artificial satellite, Sputnik 1, was launched in 1957. Key components of satellite communication systems are the space segment including the satellite, and the ground segment including earth stations. Satellites can be in either geostationary orbit or non-geostationary orbits, and provide important one-way and two-way communication services with many advantages.
Satellite communication systems allow signals to be transmitted and received via satellites orbiting Earth. Key elements include the space segment consisting of satellites and the ground segment of earth stations. Satellites transmit signals in various frequency bands. Applications include internet access, environmental monitoring, disaster management, television and radio broadcasting, broadband internet, and military communications. While satellites provide global coverage, disadvantages include high capital costs and signal propagation delays. Satellite technology is crucial for many areas of modern society and communications.
Satellite communication systems allow signals to be transmitted across large distances using satellites as relay stations in space. Communication satellites orbit the Earth and are used to transmit radio, television and other signals. The first artificial satellite, Sputnik, was launched in 1957 and demonstrated the viability of satellite communication. Modern satellite networks provide global coverage and support applications like television broadcasting, telephone networks, and high-speed internet access. Deep space networks use large ground-based radio antennas to communicate with spacecraft beyond Earth orbit, like those exploring the Moon, planets and beyond. These networks are critical for controlling deep space missions and returning science data from across the solar system.
a detailed description of the heavenly bodies that arbit millions of kilometers from the earth and yet play a major role in day to day life...this presentation discusses the concept of satellites and their help in making our lives easier..
This document summarizes key information about satellite communication. It begins by listing the group members and then defines what a satellite and communication are. It states that a communications satellite relays radio signals between transmitters and receivers on Earth via a transponder. It notes some key early satellites like Sputnik 1 and the parts of a typical satellite. The document outlines that satellites orbit due to gravity and provides details on the size, locations, and numbers of communication satellites operated by different countries. It concludes by mentioning Pakistan's communications satellites.
This document provides an overview of satellite communication systems. It defines a communication satellite as a microwave repeater in space that consists of components like transmitters, receivers, amplifiers, and antennas. It explains that a satellite radio repeater, also called a transponder, is usually a combination of a transmitter and receiver. It then describes the basic components of a satellite system, including multiplexers, demultiplexers, and ground stations. Finally, it briefly outlines the different types of satellites and frequency bands used in satellite communications.
Satellite communication uses satellites in orbit above the Earth to relay analog and digital signals between ground stations. There are about 750 communication satellites currently in orbit. Satellites can provide wide area coverage of the Earth's surface and transmission costs are independent of distance. Satellites are classified based on their orbit, with geostationary orbits providing constant coverage of one location on Earth. Active satellites amplify and retransmit signals, replacing earlier passive satellites that only reflected signals.
This document summarizes key aspects of satellite communication networks. It discusses the history of satellite systems from early experiments bouncing signals off the moon to modern communication satellites. It describes different types of satellite orbits including geostationary, medium earth, and low earth orbits. It also outlines coverage areas, frequency bands, look angles, and the basic components and functioning of uplink and downlink systems including transmitters, transponders, and receivers.
The document discusses satellite communications, beginning with the basics of how satellites work as relay stations between two earth stations. It describes the advantages and disadvantages of satellite communication compared to terrestrial systems. The types of satellite orbits - GEO, LEO, MEO, and Molniya - are outlined, along with factors that affect satellite transmission. The document concludes by covering capacity allocation methods like FDMA and TDMA, and the frequency bands used in satellite communications.
Satellite communications involves transmitting signals between Earth stations and satellites. A satellite orbits Earth and receives signals from transmitting Earth stations on the uplink frequency, amplifies the signals, and transmits them back to receiving Earth stations on the downlink frequency. Satellites are used for applications like television and radio broadcasting, telephone communications, weather monitoring, GPS navigation, and scientific research. There are different types of satellite orbits including geostationary Earth orbit (GEO), low Earth orbit (LEO), and medium Earth orbit (MEO).
Satellite Mobile Communication covering the following topics:-
Introduction
Types of Satellite
Basics
How they Work??
Communication Technologies Used
Call Routing
Handoff Management
Road Map
Application
If the communication takes place between any two earth stations through a satellite, then it is called as satellite communication. In this communication, electromagnetic waves are used as carrier signals.
Introduction
Need for communication
Satellite Communication
How a satellite works
Frequency Band of a satellite communication
Kepler’s Laws
Earth Orbit satellites
● Geosynchronous Earth Orbit
● Medium Earth Orbit
● Low Earth Orbit
Subsystems
● Space Subsystem
AOC Subsystem
TTCM Subsystem
Power and Antenna Subsystems
Transponders
● Earth Subsystem
Transmitter
Receiver
Earth Station Antenna
Tracking Subsystem
Multiple Access Techniques
● FDMA (Frequency Division Multiple Access)
● TDMA (Time Division Multiple Access)
● CDMA (Code Division Multiple Access)
Satellite Communication Services
● One-way satellite communication link service
● Two-way satellite communication link service
Global Positioning System
● GPS codes and services
● GPS receiver
Advantages
Disadvantages
Application
Bibliography
Conclusion
This document provides an overview of radio and satellite communication technologies. It discusses key topics such as radio propagation, signal characteristics, signal propagation ranges, antenna technology, the basics of how satellites work, different types of satellite orbits including GEO, LEO and MEO, factors that affect satellite communication, how satellites are used, and methods of capacity allocation like FDMA and TDMA. The document contains detailed information on these concepts through definitions, diagrams, and examples. It aims to educate the reader on the fundamentals of radio and satellite communication systems.
This document discusses the key aspects of satellites including what they are, why they are important, their components and different types of orbits. It begins by defining satellites as objects that orbit larger bodies in space, either naturally like the Moon around Earth, or man-made. Satellites are important as they allow signals like TV and phone calls to be transmitted across long distances and areas via relaying signals. The main components of satellites are antennas and power sources. The document then describes the first satellites launched by the Soviet Union and United States and India's space program. It outlines the different types of satellite orbits and concludes with various applications and advantages and disadvantages of satellite communication.
Satellite communications use satellites orbiting Earth to relay radio signals between Earth stations. The first artificial satellite, Sputnik 1, was launched by the Soviet Union in 1957. Early communications satellites like Early Bird in 1965 provided the first commercial satellite services, allowing transatlantic phone calls. There are different types of satellite orbits like low Earth orbit (LEO), geostationary Earth orbit (GEO), and medium Earth orbit (MEO) that influence factors like coverage area and signal delay. Modern satellite systems provide global services for communications, weather monitoring, navigation (GPS), and earth observation.
This document provides an overview of satellite communication. It discusses what satellites are, how satellite communication works using satellites as relay stations, the different types of satellites and orbits. It describes the key elements of a satellite communication system including the space and ground segments. It outlines various satellite communication services such as one-way and two-way links. Finally, it discusses the advantages and disadvantages of satellite communication as well as its applications.
There are three types of satellites: low Earth orbit (LEO), medium Earth orbit (MEO), and geostationary Earth orbit (GEO). LEO satellites orbit at altitudes between 500-1,200km and are used for science, imaging, and low-bandwidth telecommunications. MEO satellites orbit between 5,000-20,000km and have historically been used for GPS and navigation, but now deliver high-bandwidth connectivity. GEO satellites orbit at 36,000km and remain fixed above one point on Earth, traditionally used for weather data, TV, and some low-speed data but now enhanced with high-throughput satellites.
this presentation is about satellite communication which includes working of gps ,vsat ,frequency bands ,needs of communication satellite ,types of satellite ,working ,orbits ,elements involved in working ,transponder ,satellite control center ,satellite network
Satellite communication uses satellites as relay stations to transmit radio and television signals between Earth stations. There are over 750 communication satellites currently in orbit. They provide wide area coverage, transmission regardless of distance, and a transmission delay of about 0.3 seconds. Common types are fixed satellites for point-to-point communication, broadcast satellites for television/radio, and mobile satellites for satellite phones. Satellites can be in low, medium or geostationary orbits depending on their purpose and coverage needs. Frequency bands like C-band, Ku-band and Ka-band are used depending on the satellite type and application.
This document discusses satellite communication systems. It begins with an introduction describing satellites and their components. It then describes the principles of satellite communication, including how they function as repeater stations in space to extend the range of radio signals beyond line-of-sight limits. The key components of satellite systems are the space segment, consisting of satellites in orbit, and the ground segment, including earth stations. Various types of satellite orbits and applications are also outlined, such as global mobile communication, military uses, and navigation. The document concludes with references on satellite channel impairments and modeling.
This document discusses satellite communication and its applications in military. It describes the different types of orbits such as GEO, MEO and LEO and frequency bands used for satellite communication. It explains the wideband gapfiller satellite program and advanced wideband system being developed by the military to meet future communication needs. Protected and narrowband communication systems are also summarized. The document concludes that future satellite communication will evolve along with terrestrial systems and help improve military communication.
How To Setup Thuraya SatSleeve - User GuideCygnus Telecom
This document provides instructions for setting up and using the Thuraya SatSleeve. It explains how to attach a smartphone to the SatSleeve dock, turn on the SatSleeve, pair the smartphone and SatSleeve via Bluetooth, and enable satellite data access on the SatSleeve so the smartphone can connect to it for satellite connectivity. The steps are broken into several sections with images to aid understanding.
The document discusses various satellite communication systems including Iridium, Globalstar, Thuraya, and Inmarsat. It then describes the capabilities of Delma MSS's tactical and strategic satellite intercept systems for monitoring Thuraya, Inmarsat, and Iridium communications. The tactical system can intercept calls from up to 16 channels simultaneously while the strategic system can handle 32 channels. Both systems provide location and call content information.
Satellite communication systems allow signals to be transmitted across large distances using satellites as relay stations in space. Communication satellites orbit the Earth and are used to transmit radio, television and other signals. The first artificial satellite, Sputnik, was launched in 1957 and demonstrated the viability of satellite communication. Modern satellite networks provide global coverage and support applications like television broadcasting, telephone networks, and high-speed internet access. Deep space networks use large ground-based radio antennas to communicate with spacecraft beyond Earth orbit, like those exploring the Moon, planets and beyond. These networks are critical for controlling deep space missions and returning science data from across the solar system.
a detailed description of the heavenly bodies that arbit millions of kilometers from the earth and yet play a major role in day to day life...this presentation discusses the concept of satellites and their help in making our lives easier..
This document summarizes key information about satellite communication. It begins by listing the group members and then defines what a satellite and communication are. It states that a communications satellite relays radio signals between transmitters and receivers on Earth via a transponder. It notes some key early satellites like Sputnik 1 and the parts of a typical satellite. The document outlines that satellites orbit due to gravity and provides details on the size, locations, and numbers of communication satellites operated by different countries. It concludes by mentioning Pakistan's communications satellites.
This document provides an overview of satellite communication systems. It defines a communication satellite as a microwave repeater in space that consists of components like transmitters, receivers, amplifiers, and antennas. It explains that a satellite radio repeater, also called a transponder, is usually a combination of a transmitter and receiver. It then describes the basic components of a satellite system, including multiplexers, demultiplexers, and ground stations. Finally, it briefly outlines the different types of satellites and frequency bands used in satellite communications.
Satellite communication uses satellites in orbit above the Earth to relay analog and digital signals between ground stations. There are about 750 communication satellites currently in orbit. Satellites can provide wide area coverage of the Earth's surface and transmission costs are independent of distance. Satellites are classified based on their orbit, with geostationary orbits providing constant coverage of one location on Earth. Active satellites amplify and retransmit signals, replacing earlier passive satellites that only reflected signals.
This document summarizes key aspects of satellite communication networks. It discusses the history of satellite systems from early experiments bouncing signals off the moon to modern communication satellites. It describes different types of satellite orbits including geostationary, medium earth, and low earth orbits. It also outlines coverage areas, frequency bands, look angles, and the basic components and functioning of uplink and downlink systems including transmitters, transponders, and receivers.
The document discusses satellite communications, beginning with the basics of how satellites work as relay stations between two earth stations. It describes the advantages and disadvantages of satellite communication compared to terrestrial systems. The types of satellite orbits - GEO, LEO, MEO, and Molniya - are outlined, along with factors that affect satellite transmission. The document concludes by covering capacity allocation methods like FDMA and TDMA, and the frequency bands used in satellite communications.
Satellite communications involves transmitting signals between Earth stations and satellites. A satellite orbits Earth and receives signals from transmitting Earth stations on the uplink frequency, amplifies the signals, and transmits them back to receiving Earth stations on the downlink frequency. Satellites are used for applications like television and radio broadcasting, telephone communications, weather monitoring, GPS navigation, and scientific research. There are different types of satellite orbits including geostationary Earth orbit (GEO), low Earth orbit (LEO), and medium Earth orbit (MEO).
Satellite Mobile Communication covering the following topics:-
Introduction
Types of Satellite
Basics
How they Work??
Communication Technologies Used
Call Routing
Handoff Management
Road Map
Application
If the communication takes place between any two earth stations through a satellite, then it is called as satellite communication. In this communication, electromagnetic waves are used as carrier signals.
Introduction
Need for communication
Satellite Communication
How a satellite works
Frequency Band of a satellite communication
Kepler’s Laws
Earth Orbit satellites
● Geosynchronous Earth Orbit
● Medium Earth Orbit
● Low Earth Orbit
Subsystems
● Space Subsystem
AOC Subsystem
TTCM Subsystem
Power and Antenna Subsystems
Transponders
● Earth Subsystem
Transmitter
Receiver
Earth Station Antenna
Tracking Subsystem
Multiple Access Techniques
● FDMA (Frequency Division Multiple Access)
● TDMA (Time Division Multiple Access)
● CDMA (Code Division Multiple Access)
Satellite Communication Services
● One-way satellite communication link service
● Two-way satellite communication link service
Global Positioning System
● GPS codes and services
● GPS receiver
Advantages
Disadvantages
Application
Bibliography
Conclusion
This document provides an overview of radio and satellite communication technologies. It discusses key topics such as radio propagation, signal characteristics, signal propagation ranges, antenna technology, the basics of how satellites work, different types of satellite orbits including GEO, LEO and MEO, factors that affect satellite communication, how satellites are used, and methods of capacity allocation like FDMA and TDMA. The document contains detailed information on these concepts through definitions, diagrams, and examples. It aims to educate the reader on the fundamentals of radio and satellite communication systems.
This document discusses the key aspects of satellites including what they are, why they are important, their components and different types of orbits. It begins by defining satellites as objects that orbit larger bodies in space, either naturally like the Moon around Earth, or man-made. Satellites are important as they allow signals like TV and phone calls to be transmitted across long distances and areas via relaying signals. The main components of satellites are antennas and power sources. The document then describes the first satellites launched by the Soviet Union and United States and India's space program. It outlines the different types of satellite orbits and concludes with various applications and advantages and disadvantages of satellite communication.
Satellite communications use satellites orbiting Earth to relay radio signals between Earth stations. The first artificial satellite, Sputnik 1, was launched by the Soviet Union in 1957. Early communications satellites like Early Bird in 1965 provided the first commercial satellite services, allowing transatlantic phone calls. There are different types of satellite orbits like low Earth orbit (LEO), geostationary Earth orbit (GEO), and medium Earth orbit (MEO) that influence factors like coverage area and signal delay. Modern satellite systems provide global services for communications, weather monitoring, navigation (GPS), and earth observation.
This document provides an overview of satellite communication. It discusses what satellites are, how satellite communication works using satellites as relay stations, the different types of satellites and orbits. It describes the key elements of a satellite communication system including the space and ground segments. It outlines various satellite communication services such as one-way and two-way links. Finally, it discusses the advantages and disadvantages of satellite communication as well as its applications.
There are three types of satellites: low Earth orbit (LEO), medium Earth orbit (MEO), and geostationary Earth orbit (GEO). LEO satellites orbit at altitudes between 500-1,200km and are used for science, imaging, and low-bandwidth telecommunications. MEO satellites orbit between 5,000-20,000km and have historically been used for GPS and navigation, but now deliver high-bandwidth connectivity. GEO satellites orbit at 36,000km and remain fixed above one point on Earth, traditionally used for weather data, TV, and some low-speed data but now enhanced with high-throughput satellites.
this presentation is about satellite communication which includes working of gps ,vsat ,frequency bands ,needs of communication satellite ,types of satellite ,working ,orbits ,elements involved in working ,transponder ,satellite control center ,satellite network
Satellite communication uses satellites as relay stations to transmit radio and television signals between Earth stations. There are over 750 communication satellites currently in orbit. They provide wide area coverage, transmission regardless of distance, and a transmission delay of about 0.3 seconds. Common types are fixed satellites for point-to-point communication, broadcast satellites for television/radio, and mobile satellites for satellite phones. Satellites can be in low, medium or geostationary orbits depending on their purpose and coverage needs. Frequency bands like C-band, Ku-band and Ka-band are used depending on the satellite type and application.
This document discusses satellite communication systems. It begins with an introduction describing satellites and their components. It then describes the principles of satellite communication, including how they function as repeater stations in space to extend the range of radio signals beyond line-of-sight limits. The key components of satellite systems are the space segment, consisting of satellites in orbit, and the ground segment, including earth stations. Various types of satellite orbits and applications are also outlined, such as global mobile communication, military uses, and navigation. The document concludes with references on satellite channel impairments and modeling.
This document discusses satellite communication and its applications in military. It describes the different types of orbits such as GEO, MEO and LEO and frequency bands used for satellite communication. It explains the wideband gapfiller satellite program and advanced wideband system being developed by the military to meet future communication needs. Protected and narrowband communication systems are also summarized. The document concludes that future satellite communication will evolve along with terrestrial systems and help improve military communication.
How To Setup Thuraya SatSleeve - User GuideCygnus Telecom
This document provides instructions for setting up and using the Thuraya SatSleeve. It explains how to attach a smartphone to the SatSleeve dock, turn on the SatSleeve, pair the smartphone and SatSleeve via Bluetooth, and enable satellite data access on the SatSleeve so the smartphone can connect to it for satellite connectivity. The steps are broken into several sections with images to aid understanding.
The document discusses various satellite communication systems including Iridium, Globalstar, Thuraya, and Inmarsat. It then describes the capabilities of Delma MSS's tactical and strategic satellite intercept systems for monitoring Thuraya, Inmarsat, and Iridium communications. The tactical system can intercept calls from up to 16 channels simultaneously while the strategic system can handle 32 channels. Both systems provide location and call content information.
This document provides guidance on writing a research paper. It begins by outlining ethics for using sources and then defines what constitutes a research paper. A research paper involves research, critical thinking, source evaluation, organization, and composition around a topic. It uses primary and secondary sources to explore a topic and provide a unique perspective, rather than just summarizing sources. There are two main types of research papers: argumentative and analytical. The document provides examples of thesis statements for each type and discusses choosing topics and developing a thesis statement. It emphasizes that a thesis often evolves during the writing process.
Satellites orbit Earth for a variety of purposes such as communication, weather monitoring, and navigation. They come in different types depending on their distance from Earth, including low-Earth orbit, medium-Earth orbit, and geostationary orbit. The Global Positioning System is a constellation of 24 satellites that provides location and time information to GPS receivers anywhere on Earth.
This document provides tips for making an effective presentation of research work in 3 sentences or less:
The document outlines best practices for creating clear and readable presentation slides, including using point form, limiting text per slide, using large and contrasting fonts, simple backgrounds, and properly formatted graphs and tables. Common mistakes to avoid are discussed, such as small fonts, excessive use of colors and animation, and distracting backgrounds. The presentation should be proofread for spelling and grammar errors, and conclude with a summary of key points and an invitation for questions.
The document summarizes a study that surveyed 130 newly admitted undergraduate teacher education students about their views on parent involvement in education. The survey aimed to understand students' memories of their own families' school involvement and how they conceptualize the roles of parents and teachers. It found that students viewed parent knowledge as long-term and individual while teacher knowledge was seen as professional and unbiased. Students anticipated doing more school-based parent involvement like conferences rather than community activities. The authors advocate giving greater attention to families in teacher education programs.
This document summarizes a presentation about satellite communication. It discusses the basic concept of a communication satellite, how satellites are used as relay stations to transmit signals between Earth stations, and the different types of satellite orbits including geostationary, low Earth, and medium Earth orbits. It also covers topics like inter-satellite links, routing between satellites, common modulation techniques, and recent developments in satellite communication technology.
The document provides an overview of the key components of a thesis, including:
1. The definition and purpose of a thesis.
2. The typical sections of a thesis such as the title page, approval sheet, abstract, acknowledgements, and table of contents.
3. Guidance on writing each section, for example the abstract should be a brief 2-page summary and the table of contents should list headings and subheadings.
4. Suggested chapter titles like the introduction, literature review, methodology, results, and conclusion chapters.
5. An outline of what information belongs in each chapter, for instance the significance of the study for the introduction chapter.
The document discusses the benefits of exercise for both physical and mental health. It notes that regular exercise can reduce the risk of diseases like heart disease and diabetes, improve mood, and reduce feelings of stress and anxiety. The document recommends that adults get at least 150 minutes of moderate exercise or 75 minutes of vigorous exercise per week to gain these benefits.
The passage discusses several factors that contributed to the decline of the parallel cinema movement in India from 1980-2000. This period saw radical economic and technological transformations, including the expansion of Doordarshan's television network, the introduction of color TV, and the launch of economic liberalization policies. These policies ended Doordarshan's broadcasting monopoly and allowed satellite television to enter India. Commercial internet also arrived in 1995. These technological changes captured the attention of India's growing urban middle class and provided more media choices, which reduced support for parallel cinema.
TVRO SYSTEM
Project Report of Television Receive Only System implementation at Institute premises. Related to Satellite Communication
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The Iridium satellite system provides global voice and data coverage using a constellation of 66 low Earth orbit satellites. It was the first satellite system to provide pole-to-pole coverage. Signals are sent between satellites via crosslinks to route calls anywhere on Earth. While initially suffering from high costs and technical limitations, Iridium is still in operation today with over 200,000 subscribers, and is working on an next-generation satellite upgrade called Iridium NEXT.
Project Loon is a research and development project being developed by Brent Corley (formerly Google X) with the mission of providing Internet access to rural and remote areas. ... Users of the service connect to the balloon network using a special Internet antenna attached to their building.
Project Loon is a research and development project being developed by Brent Corley (formerly Google X) with the mission of providing Internet access to rural and remote areas. ... Users of the service connect to the balloon network using a special Internet antenna attached to their building.
Project Loon aims to provide internet access to rural and remote areas using a network of balloons traveling in the stratosphere. The balloons float twice as high as airplanes, powered by solar panels and navigated by rising and falling to different wind currents. People on the ground connect to the balloon network using special antennas. Signals bounce between balloons and back to the global internet. A pilot test was conducted successfully in New Zealand in 2013. While the stratosphere presents engineering challenges like extreme temperatures and lack of protection from radiation, Project Loon could help connect more of the world and provide communications during disasters.
technology is changing rapidly that hardly any human activity will be possible in the coming year without the use of computer. we must be aware of these technological changes.
Satellite systems use satellites in various orbits around Earth to provide services like communication, weather monitoring, and navigation. There are four main types of orbits - geostationary (GEO), low Earth orbit (LEO), medium Earth orbit (MEO), and highly elliptical orbit (HEO). GEO satellites orbit at 36,000 km and remain stationary over one spot on Earth, making them ideal for TV/radio broadcasting. LEO satellites orbit lower at 500-1500 km, providing lower latency but requiring many satellites for global coverage. MEO satellites orbit between LEO and GEO, balancing coverage and latency. HEO satellites have elliptical orbits that allow coverage of high latitudes. Satellite systems include the satellites, ground stations,
The document discusses satellite communication and provides information on several key topics:
1. It defines what a satellite is and describes communication satellites.
2. It discusses the history of satellites and mentions some important early satellites launched by countries like the US and India.
3. It describes the basic components of a satellite, frequency bands used, types of satellite orbits, and how satellite communication works through uplinks and downlinks.
4. Advantages include wide area coverage and applications for voice, data, and video transmission, while disadvantages include high manufacturing costs and limited satellite lifespan.
5. Common applications of satellite communication mentioned are telephone, television, radio, internet, and military use.
Communication satellites enable connectivity around the world by linking devices via voice, video, and broadband internet. They provide crucial communication services to ships, aircraft, and areas without terrestrial networks. Communication satellites orbit over 35,000 km above Earth's equator, completing orbits at the same rate that the Earth rotates, allowing for fixed transmission between satellites and ground stations. They receive and amplify radio signals through transponders, acting as relays to create communication channels between different locations on Earth.
Project Loon is Google's initiative to provide internet access to rural and remote areas using balloons floating in the stratosphere. The balloons carry communications equipment and solar panels to beam wireless internet signals to antennas on the ground. They are designed to move with wind currents to stay aloft for months at a time. Google conducted a pilot test of 30 balloons over New Zealand in 2013 to demonstrate the technology. Project Loon aims to bring internet access to the two-thirds of the world not currently connected and help restore connectivity after natural disasters.
The document summarizes the advantages and opportunities of establishing sustainable lunar settlements. It outlines that the moon has resources like oxygen and metals, is very close to Earth with a trip taking only 3 days, and has permanently shadowed craters that contain water ice. Establishing infrastructure on the moon would make accessing other parts of the solar system easier due to lower gravity and acceleration needs. While many technical challenges remain around areas like mining water, with the right conditions and continued progress in reducing launch costs, a self-sustaining lunar economy could develop through opportunities in areas like solar power, radio astronomy, asteroid mining, and serving as a spaceport.
Satellites orbit planets and stars, and the word usually refers to man-made machines launched into space. Natural satellites include Earth's moon, while artificial satellites orbit Earth and take photos for weather prediction, planetary exploration, and understanding the universe. Satellites also enable global communications like television and phone signals by receiving and retransmitting them from orbit. They provide views of large areas at once from above clouds and atmosphere.
Bangabandhu-1 is Bangladesh's first communications satellite. It was launched in May 2018 on a SpaceX Falcon 9 rocket. The satellite provides 40 transponders in C-band and Ku-band to support telecommunications, broadcasting, and internet services. It allows Bangladesh to save money by using its own satellite capacity rather than renting from foreign operators, and expands connectivity to remote areas. The successful launch of Bangabandhu-1 marks Bangladesh joining the elite club of countries with their own satellites and is expected to open massive opportunities in telecom, broadcasting, and other sectors.
Project Loon aims to provide internet access to rural and remote areas using high-altitude balloons. The balloons float in the stratosphere and are moved around by wind currents to different locations. They connect to each other and to ground stations to form an aerial wireless network. Users connect to this network via special antennas. While Loon has the potential to provide low-cost internet access globally, it also faces challenges from technical failures, international politics, and being a supplemental rather than replacement for other internet solutions.
Project Loon aims to provide internet access to rural and remote areas using high-altitude balloons. The balloons float in the stratosphere and are moved around by wind currents to different locations. They connect to each other and to ground stations to form an aerial wireless network. Users connect to this network using a special antenna. While Loon has the potential to provide low-cost internet access globally, it also faces challenges from technical failures, international politics, and being a supplemental rather than replacement for other internet solutions.
Observability Concepts EVERY Developer Should Know -- DeveloperWeek Europe.pdfPaige Cruz
Monitoring and observability aren’t traditionally found in software curriculums and many of us cobble this knowledge together from whatever vendor or ecosystem we were first introduced to and whatever is a part of your current company’s observability stack.
While the dev and ops silo continues to crumble….many organizations still relegate monitoring & observability as the purview of ops, infra and SRE teams. This is a mistake - achieving a highly observable system requires collaboration up and down the stack.
I, a former op, would like to extend an invitation to all application developers to join the observability party will share these foundational concepts to build on:
In the rapidly evolving landscape of technologies, XML continues to play a vital role in structuring, storing, and transporting data across diverse systems. The recent advancements in artificial intelligence (AI) present new methodologies for enhancing XML development workflows, introducing efficiency, automation, and intelligent capabilities. This presentation will outline the scope and perspective of utilizing AI in XML development. The potential benefits and the possible pitfalls will be highlighted, providing a balanced view of the subject.
We will explore the capabilities of AI in understanding XML markup languages and autonomously creating structured XML content. Additionally, we will examine the capacity of AI to enrich plain text with appropriate XML markup. Practical examples and methodological guidelines will be provided to elucidate how AI can be effectively prompted to interpret and generate accurate XML markup.
Further emphasis will be placed on the role of AI in developing XSLT, or schemas such as XSD and Schematron. We will address the techniques and strategies adopted to create prompts for generating code, explaining code, or refactoring the code, and the results achieved.
The discussion will extend to how AI can be used to transform XML content. In particular, the focus will be on the use of AI XPath extension functions in XSLT, Schematron, Schematron Quick Fixes, or for XML content refactoring.
The presentation aims to deliver a comprehensive overview of AI usage in XML development, providing attendees with the necessary knowledge to make informed decisions. Whether you’re at the early stages of adopting AI or considering integrating it in advanced XML development, this presentation will cover all levels of expertise.
By highlighting the potential advantages and challenges of integrating AI with XML development tools and languages, the presentation seeks to inspire thoughtful conversation around the future of XML development. We’ll not only delve into the technical aspects of AI-powered XML development but also discuss practical implications and possible future directions.
Communications Mining Series - Zero to Hero - Session 1DianaGray10
This session provides introduction to UiPath Communication Mining, importance and platform overview. You will acquire a good understand of the phases in Communication Mining as we go over the platform with you. Topics covered:
• Communication Mining Overview
• Why is it important?
• How can it help today’s business and the benefits
• Phases in Communication Mining
• Demo on Platform overview
• Q/A
Goodbye Windows 11: Make Way for Nitrux Linux 3.5.0!SOFTTECHHUB
As the digital landscape continually evolves, operating systems play a critical role in shaping user experiences and productivity. The launch of Nitrux Linux 3.5.0 marks a significant milestone, offering a robust alternative to traditional systems such as Windows 11. This article delves into the essence of Nitrux Linux 3.5.0, exploring its unique features, advantages, and how it stands as a compelling choice for both casual users and tech enthusiasts.
Full-RAG: A modern architecture for hyper-personalizationZilliz
Mike Del Balso, CEO & Co-Founder at Tecton, presents "Full RAG," a novel approach to AI recommendation systems, aiming to push beyond the limitations of traditional models through a deep integration of contextual insights and real-time data, leveraging the Retrieval-Augmented Generation architecture. This talk will outline Full RAG's potential to significantly enhance personalization, address engineering challenges such as data management and model training, and introduce data enrichment with reranking as a key solution. Attendees will gain crucial insights into the importance of hyperpersonalization in AI, the capabilities of Full RAG for advanced personalization, and strategies for managing complex data integrations for deploying cutting-edge AI solutions.
A tale of scale & speed: How the US Navy is enabling software delivery from l...sonjaschweigert1
Rapid and secure feature delivery is a goal across every application team and every branch of the DoD. The Navy’s DevSecOps platform, Party Barge, has achieved:
- Reduction in onboarding time from 5 weeks to 1 day
- Improved developer experience and productivity through actionable findings and reduction of false positives
- Maintenance of superior security standards and inherent policy enforcement with Authorization to Operate (ATO)
Development teams can ship efficiently and ensure applications are cyber ready for Navy Authorizing Officials (AOs). In this webinar, Sigma Defense and Anchore will give attendees a look behind the scenes and demo secure pipeline automation and security artifacts that speed up application ATO and time to production.
We will cover:
- How to remove silos in DevSecOps
- How to build efficient development pipeline roles and component templates
- How to deliver security artifacts that matter for ATO’s (SBOMs, vulnerability reports, and policy evidence)
- How to streamline operations with automated policy checks on container images
Climate Impact of Software Testing at Nordic Testing DaysKari Kakkonen
My slides at Nordic Testing Days 6.6.2024
Climate impact / sustainability of software testing discussed on the talk. ICT and testing must carry their part of global responsibility to help with the climat warming. We can minimize the carbon footprint but we can also have a carbon handprint, a positive impact on the climate. Quality characteristics can be added with sustainability, and then measured continuously. Test environments can be used less, and in smaller scale and on demand. Test techniques can be used in optimizing or minimizing number of tests. Test automation can be used to speed up testing.
UiPath Test Automation using UiPath Test Suite series, part 6DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 6. In this session, we will cover Test Automation with generative AI and Open AI.
UiPath Test Automation with generative AI and Open AI webinar offers an in-depth exploration of leveraging cutting-edge technologies for test automation within the UiPath platform. Attendees will delve into the integration of generative AI, a test automation solution, with Open AI advanced natural language processing capabilities.
Throughout the session, participants will discover how this synergy empowers testers to automate repetitive tasks, enhance testing accuracy, and expedite the software testing life cycle. Topics covered include the seamless integration process, practical use cases, and the benefits of harnessing AI-driven automation for UiPath testing initiatives. By attending this webinar, testers, and automation professionals can gain valuable insights into harnessing the power of AI to optimize their test automation workflows within the UiPath ecosystem, ultimately driving efficiency and quality in software development processes.
What will you get from this session?
1. Insights into integrating generative AI.
2. Understanding how this integration enhances test automation within the UiPath platform
3. Practical demonstrations
4. Exploration of real-world use cases illustrating the benefits of AI-driven test automation for UiPath
Topics covered:
What is generative AI
Test Automation with generative AI and Open AI.
UiPath integration with generative AI
Speaker:
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
In his public lecture, Christian Timmerer provides insights into the fascinating history of video streaming, starting from its humble beginnings before YouTube to the groundbreaking technologies that now dominate platforms like Netflix and ORF ON. Timmerer also presents provocative contributions of his own that have significantly influenced the industry. He concludes by looking at future challenges and invites the audience to join in a discussion.
20 Comprehensive Checklist of Designing and Developing a WebsitePixlogix Infotech
Dive into the world of Website Designing and Developing with Pixlogix! Looking to create a stunning online presence? Look no further! Our comprehensive checklist covers everything you need to know to craft a website that stands out. From user-friendly design to seamless functionality, we've got you covered. Don't miss out on this invaluable resource! Check out our checklist now at Pixlogix and start your journey towards a captivating online presence today.
Dr. Sean Tan, Head of Data Science, Changi Airport Group
Discover how Changi Airport Group (CAG) leverages graph technologies and generative AI to revolutionize their search capabilities. This session delves into the unique search needs of CAG’s diverse passengers and customers, showcasing how graph data structures enhance the accuracy and relevance of AI-generated search results, mitigating the risk of “hallucinations” and improving the overall customer journey.
For the full video of this presentation, please visit: https://www.edge-ai-vision.com/2024/06/building-and-scaling-ai-applications-with-the-nx-ai-manager-a-presentation-from-network-optix/
Robin van Emden, Senior Director of Data Science at Network Optix, presents the “Building and Scaling AI Applications with the Nx AI Manager,” tutorial at the May 2024 Embedded Vision Summit.
In this presentation, van Emden covers the basics of scaling edge AI solutions using the Nx tool kit. He emphasizes the process of developing AI models and deploying them globally. He also showcases the conversion of AI models and the creation of effective edge AI pipelines, with a focus on pre-processing, model conversion, selecting the appropriate inference engine for the target hardware and post-processing.
van Emden shows how Nx can simplify the developer’s life and facilitate a rapid transition from concept to production-ready applications.He provides valuable insights into developing scalable and efficient edge AI solutions, with a strong focus on practical implementation.
Enchancing adoption of Open Source Libraries. A case study on Albumentations.AIVladimir Iglovikov, Ph.D.
Presented by Vladimir Iglovikov:
- https://www.linkedin.com/in/iglovikov/
- https://x.com/viglovikov
- https://www.instagram.com/ternaus/
This presentation delves into the journey of Albumentations.ai, a highly successful open-source library for data augmentation.
Created out of a necessity for superior performance in Kaggle competitions, Albumentations has grown to become a widely used tool among data scientists and machine learning practitioners.
This case study covers various aspects, including:
People: The contributors and community that have supported Albumentations.
Metrics: The success indicators such as downloads, daily active users, GitHub stars, and financial contributions.
Challenges: The hurdles in monetizing open-source projects and measuring user engagement.
Development Practices: Best practices for creating, maintaining, and scaling open-source libraries, including code hygiene, CI/CD, and fast iteration.
Community Building: Strategies for making adoption easy, iterating quickly, and fostering a vibrant, engaged community.
Marketing: Both online and offline marketing tactics, focusing on real, impactful interactions and collaborations.
Mental Health: Maintaining balance and not feeling pressured by user demands.
Key insights include the importance of automation, making the adoption process seamless, and leveraging offline interactions for marketing. The presentation also emphasizes the need for continuous small improvements and building a friendly, inclusive community that contributes to the project's growth.
Vladimir Iglovikov brings his extensive experience as a Kaggle Grandmaster, ex-Staff ML Engineer at Lyft, sharing valuable lessons and practical advice for anyone looking to enhance the adoption of their open-source projects.
Explore more about Albumentations and join the community at:
GitHub: https://github.com/albumentations-team/albumentations
Website: https://albumentations.ai/
LinkedIn: https://www.linkedin.com/company/100504475
Twitter: https://x.com/albumentations
Cosa hanno in comune un mattoncino Lego e la backdoor XZ?Speck&Tech
ABSTRACT: A prima vista, un mattoncino Lego e la backdoor XZ potrebbero avere in comune il fatto di essere entrambi blocchi di costruzione, o dipendenze di progetti creativi e software. La realtà è che un mattoncino Lego e il caso della backdoor XZ hanno molto di più di tutto ciò in comune.
Partecipate alla presentazione per immergervi in una storia di interoperabilità, standard e formati aperti, per poi discutere del ruolo importante che i contributori hanno in una comunità open source sostenibile.
BIO: Sostenitrice del software libero e dei formati standard e aperti. È stata un membro attivo dei progetti Fedora e openSUSE e ha co-fondato l'Associazione LibreItalia dove è stata coinvolta in diversi eventi, migrazioni e formazione relativi a LibreOffice. In precedenza ha lavorato a migrazioni e corsi di formazione su LibreOffice per diverse amministrazioni pubbliche e privati. Da gennaio 2020 lavora in SUSE come Software Release Engineer per Uyuni e SUSE Manager e quando non segue la sua passione per i computer e per Geeko coltiva la sua curiosità per l'astronomia (da cui deriva il suo nickname deneb_alpha).
Why You Should Replace Windows 11 with Nitrux Linux 3.5.0 for enhanced perfor...SOFTTECHHUB
The choice of an operating system plays a pivotal role in shaping our computing experience. For decades, Microsoft's Windows has dominated the market, offering a familiar and widely adopted platform for personal and professional use. However, as technological advancements continue to push the boundaries of innovation, alternative operating systems have emerged, challenging the status quo and offering users a fresh perspective on computing.
One such alternative that has garnered significant attention and acclaim is Nitrux Linux 3.5.0, a sleek, powerful, and user-friendly Linux distribution that promises to redefine the way we interact with our devices. With its focus on performance, security, and customization, Nitrux Linux presents a compelling case for those seeking to break free from the constraints of proprietary software and embrace the freedom and flexibility of open-source computing.
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What is a Satellite
And what do they do for us.
• A simple question, what is a satellite?
o Here is the answer from NASA (and they should know)
o A satellite is a moon, planet or machine that orbits a planet or star. For example, Earth is
a satellite because it orbits the sun. Likewise, the moon is a satellite because it orbits
Earth. Usually, the word "satellite" refers to a machine that is launched into space and
moves around Earth or another body in space.
• Name some uses for satellites?
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What Satellites do for us in every day life
• Navigation
o GPS
o GLONASS (GLObal NAvigation Satellite System)
o BeiDou
o Galileo
o IRNSS (only covers Indian continent)
• Earth observation
o Environmental monitoring
Polar Ice caps
Floods
Sea temperatures
o Mapping (Google Maps)
o Weather forecasting
• Communication
o Voice and Internet
• Television and radio Broadcasting
• Military
• Space observation
o Hubble telescope
• Scientific
o The International Space Station
• Time keeping
o Banking and stock exchange
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How they get there?
• Launchers (Rockets)
o Ariena (https://www.youtube.com/watch?v=L5P_8PNKsrE)
o Proton (https://www.youtube.com/watch?v=vqW0LEcTAYg)
o SpaceX (https://www.youtube.com/watch?v=5PHkgSEX11o)
• Risky part of a satellite life.
o In 2015 eighty-six launches and five failures. (5.8% failure rate)
o 2 to 3 years to design new satellite
o 1.5 to 2 years to build the satellite
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Roles
What Does The UAE Space Agency Do?
• Space Mission Management
• Plan and manage missions to Space such as the upcoming Mars
Mission commemorating the UAE 50th Anniversary in 2021.
• Policy, Law and Regulation
• Partnerships
• Strategic partnerships around the world eg. With NASA
• Education and Outreach
• Educating the UAE on space and related sciences and
creating good scientists (lectures, competitions, Space
School etc)
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Competitions
Rocket Design Competition
Launched by
Mohammed bin Rashid
Genes in Space Competition
in conjunction with
Boeing and National
Newspaper
Virtual House on Mars
Competition
UAE Mars Balloon will provide
universities and schools with the
opportunity to participate in a
Stratospheric experiment
opportunity in 2017.
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Navigation
Global Positioning System (US System)
• Three parts to the system
o Earth stations
o Satellites (around about 30 in orbit at any one time)
24 required to be active to give global coverage.
o Receiver (Your satnav in car or GPS plotter on a boat)
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Navigation
2D Trilateration
• Trilateration
o Another method of finding your
position in 2D for normal map
o This time instead of using the
bearing to the landmarks we
use distance.
o The aerials at are 3km from
you
o The church with a tower is
3.5km from you.
o The windmill is 2.5km from you
X
X
3km
2.5km
3.5km
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Navigation
3D Trilateration
• One satellite
o Position anywhere on the surface of the sphere
• Two satellites
o Position is anywhere on circle that the two
spheres intersect.
• Three satellites
o Position is one of two locations where all three
spheres intersect the location nearest earth is
selected.
• Four satellites
o Required to correct the timing in the receiver
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Navigation
Calculating the distance to the satellite
• Timing onboard the satellites done by very accurate atomic clocks.
• Timing on receiver not very accurate so needs correction from satellites.
o But which one to choose?
• Special code is generated by the satellites
and the receiver.
• All the signals arrive at different times
• Once the timing is corrected then each
satellite tells the receiver how far away it
is due to the time that it takes for the
signal to reach it.
It takes 4 satellites to help work out the timings
GPS 1
GPS 2
GPS 3
GPS 4
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Navigation
Potential Issues that stop you getting a GPS fix
• Large distance moved since last time GPS was switched on.
o Almanac (Basically a list of the positions of all the satellites) has to be updated for the
new location.
Can take 5 – 10 minutes
• Blockage to GPS antenna so that it can not see four satellites.
• Solar storm (caused by the Sun) can cause black outs
• Problems with the Satellites
o Happened recently (Feb 2016) when US GPS System was disrupted for a 12 hours due to
issue with updating software.
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Communication
• One of the main usages of satellites after GPS in the maritime
environment.
• Two main types voice and data.
• Voice
o Circuit Switched (Like the phone in your house) or VoIP (Skype)
o Key as long range emergency communication device
o General usage.
• Data
o Provides web, email, social media access just like your broadband service at
home.
o Provides information on the weather, piracy and other safety notices, harbor
or marina details.
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Hands On
Group One and Two
• Group One
o Make a call between the two satellite phones.
o Make a note of anything that you noticed that was different to a normal mobile phone
Time for the signal to reach the other person.
Voice quality is as clear as normal phone
What happens if you point the aerial away from the satellite
• Group Two
o Make a call between satellite phone and mobile phone and then the other way round.
o Make a note of anything that you noticed that was different to a normal mobile phone
Time for the signal to reach the other person.
Voice quality is as clear as normal phone
What happens if you point the aerial away from the satellite
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Hands On
Group 3
• Using the IP+ Thuraya Broadband terminal
• Align the device to the satellite by pointing it using the compass and sprite level
o More info on next slide
• Connect to the Wifi of the device password “Murray12”
• Open web page see how long it takes to load
• Use speed checker app to measure speed.
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Delay in voice
How the math's you learned in school helps
• Distance to the satellite = 36,615km
o = 36,615,000m
• Speed of light = 3 x 10 m/s
o Which is a 3 with eight zeros after it
o 300,000,000 m/s
• Time for the signal to go to the satellite
• But the signal has to come back to the other phone so delay is 2 x 0.122s = 0.244s
D
S T
Distance
Speed
36,615,000
300,000,000
0.122s
8
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Safety
• Global Maritime Distress and Safety System (GMDSS)
o Uses satellite (Inmarsat C) and normal radio VHF and HF
transmissions
o Provides automatic positioning reporting, search and rescue
coordination, Maritime Safety Information broadcasts and
general communication
o Voluntary by recommended on recreational water craft
• Emergency position-indicating radio beacon (EPIRB)
o Works by transmitting a coded message on a distress
frequency via Cospas-Sarsat global satellite system and earth
stations to the nearest rescue centre most units have a GPS
receiver to provide your location to the rescue services.
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Tracking
• Satellite Automatic Identification System
(http://www.marinetraffic.com/en/ais/home/centerx:55.3/centery:25.3/zoom:15)
• Race Tracking
• Provides:
• Location
• Speed
• Direction
• Time of update
• Course travelled
• Using the XT-Pro Satphone
• Updates every 15mins
Experiment on how they stay in space. Ping pong gun
Circumference of the earth 40,075km around the equator and 40,008km if you go through the poles (diameter around 12,756km)
Moon is at 384,000km
Sputnik launched in 1957 now between 1,500 & 2,300
Video of a launch
On Monday, India sent a rocket into space which successfully launched eight satellites in one go.
The main purpose of the launch which took place at the Sriharikota space centre off India's eastern coast, was to put into orbit SCATSAT-1, a satellite that will help weather forecasting. Five of the other satellites that were on board are foreign, from the US, Canada and Algeria.
Ariena video 18 – 70 sec, 3:10 – 4:10, 5:12 – 6:00, 9:20 on wards. 3km/s = 10,000km/hr 7km/s = 25,000km/hr
The rocket must blast off from Earth during a brief “launch window” in July 2020. This is because the Earth and Mars orbit the Sun at different rates, and are aligned at their closest point only once every two years. The rocket will orbit Mars taking measurements and making observations.