Satellite communication and it's future
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This document provides information about a course titled "Statistics and Probability" with course code STA 133 at Daffodil International University under the Department of Computer Science and Engineering. The document outlines the course name, code, and institution.
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Satellite communication
This document discusses satellite communication, including what satellites are, how satellite communication systems work, different types of satellite orbits, the evolution of satellite technology from passive to active satellites, services provided by satellites such as television and radio broadcasting, advantages of satellite communication such as its universal and reliable coverage, and applications such as military and internet access. The future of satellite communication is discussed, with expectations that satellites will have more onboard processing capabilities and power to handle higher bandwidth demands.
Satelite communication
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.
Satellite communication
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 system
This document discusses satellite orbits and positioning systems. It begins by introducing satellite system components like subsystems, uplinks and downlinks. It then defines key terms related to satellite orbits, such as the minimum velocity needed to orbit Earth and different orbit classifications like LEO, MEO, HEO and polar orbits. Multiple access methods for satellites like TDMA, FDMA and CDMA are also covered. The document concludes by providing an overview of the GPS system and its space, control and user segments.
satellite-communication-ppt
A communication satellite receives radio signals from earth stations, amplifies them, and redirects them back to earth. It acts as a radio relay in space, allowing signals to be transmitted over greater distances than would be possible with terrestrial communication methods alone. A satellite's transponder receives uplink signals, amplifies them using a low-noise amplifier, down converts the frequency, filters it, amplifies it again using a power amplifier, and retransmits it back to earth on the downlink frequency. This allows the satellite to receive and redirect communications between various earth stations.
Introduction to satellite communication
Satellite communication allows people to communicate across long distances. Arthur C. Clarke first proposed the idea of communication satellites in 1945. The first satellite launched was Sputnik 1 by Russia in 1957, though it did not have communication capabilities. Commercial satellite communication began with the launch of Early Bird in 1965. Satellites can be in low, medium or geostationary orbits and operate in different frequency bands like C-band and Ku-band. They provide advantages like global coverage and reliability over terrestrial networks.
Satellite communications
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.
PRESENTATION ON SATELLITE COMMUNICATION
I THINK IT IS VERY USEFUL WHO NEEDS PPT ON SATELLITE COMMUNICATION.IT CONSISTS OF 31 SLIDES.MAINLY FOCUSES ON THEORY.
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Satellite communication
This document discusses satellite communication, including what satellites are, how satellite communication systems work, different types of satellite orbits, the evolution of satellite technology from passive to active satellites, services provided by satellites such as television and radio broadcasting, advantages of satellite communication such as its universal and reliable coverage, and applications such as military and internet access. The future of satellite communication is discussed, with expectations that satellites will have more onboard processing capabilities and power to handle higher bandwidth demands.
Satelite communication
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.
Satellite communication
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 system
This document discusses satellite orbits and positioning systems. It begins by introducing satellite system components like subsystems, uplinks and downlinks. It then defines key terms related to satellite orbits, such as the minimum velocity needed to orbit Earth and different orbit classifications like LEO, MEO, HEO and polar orbits. Multiple access methods for satellites like TDMA, FDMA and CDMA are also covered. The document concludes by providing an overview of the GPS system and its space, control and user segments.
satellite-communication-ppt
A communication satellite receives radio signals from earth stations, amplifies them, and redirects them back to earth. It acts as a radio relay in space, allowing signals to be transmitted over greater distances than would be possible with terrestrial communication methods alone. A satellite's transponder receives uplink signals, amplifies them using a low-noise amplifier, down converts the frequency, filters it, amplifies it again using a power amplifier, and retransmits it back to earth on the downlink frequency. This allows the satellite to receive and redirect communications between various earth stations.
Introduction to satellite communication
Satellite communication allows people to communicate across long distances. Arthur C. Clarke first proposed the idea of communication satellites in 1945. The first satellite launched was Sputnik 1 by Russia in 1957, though it did not have communication capabilities. Commercial satellite communication began with the launch of Early Bird in 1965. Satellites can be in low, medium or geostationary orbits and operate in different frequency bands like C-band and Ku-band. They provide advantages like global coverage and reliability over terrestrial networks.
Satellite communications
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.
PRESENTATION ON SATELLITE COMMUNICATION
I THINK IT IS VERY USEFUL WHO NEEDS PPT ON SATELLITE COMMUNICATION.IT CONSISTS OF 31 SLIDES.MAINLY FOCUSES ON THEORY.
Introduction to satellite communication
This document provides an introduction to satellite communication. It defines what a satellite is, noting that the first Indian communication satellite was Aryabhatta, launched in 1975. Satellites are classified as either active or passive. Active satellites contain transponders that amplify and translate signals to avoid interference. Passive satellites can be natural, like the Moon, or artificial. The document also summarizes Kepler's laws of planetary motion, including his first law that planets orbit in ellipses with the Sun at one focus, his second law about equal areas being swept in equal times, and his third law relating orbital periods to semi-major axes.
Digital satellite communications
This document provides an outline for a course on digital satellite communications. It begins with course objectives, then provides an introduction to satellite communication principles. The basics section explains how satellite communication works, including earth station components and signal transmission. It also covers satellite types like GEO, LEO and MEO, as well as factors that impair signals. The document discusses frequency bands, network configurations, capacity allocation methods, and applications of satellite technology. Overall it aims to give students an overview of digital satellite communication systems and components.
communication satellite
Satellite communication has become an integral part of global communication infrastructure. Satellites relay radio signals between Earth stations to enable services like television broadcasting, telephone calls, and internet access across long distances. There are different types of communication satellites depending on their use - fixed satellites provide point-to-point communication, broadcast satellites deliver television and radio signals directly to receivers, and mobile satellites facilitate services like satellite phones. While satellites provide advantages like universal coverage and independence from terrestrial infrastructure, they also have disadvantages like high initial costs and potential signal interference issues.
Satellite communications ppt
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.
Earth station Parameters
Earth stations are systems that transmit and receive signals to and from satellites. They consist of subsystems like transmitters, receivers, antennas, and tracking equipment. Key parameters that affect earth station performance include transmitter power, antenna gain and efficiency, noise temperature, and local weather conditions. The ratio of antenna gain to noise temperature (G/T ratio) is important, as it determines the strength of the received signal relative to thermal noise. Path loss increases significantly with distance between the earth station and satellite due to signal dispersion over the propagation path. Various factors like operating frequency, elevation angle, polarization, and local meteorology can impact propagation impairments.
Leo satellite networks
This document summarizes a presentation on routing algorithms for low Earth orbit (LEO) satellite networks. It begins by defining the different types of satellite orbits - geostationary, medium Earth, highly elliptical, and low Earth orbit. It then focuses on LEO networks, discussing their architecture, applications, advantages over other networks, and open issues in routing. Several routing algorithms for LEO networks are also classified and described. The document concludes by stating that LEO networks are commonly used for broadcasting internet services due to their low cost and high data transmission rates.
satellite Communication
This presentation discusses satellite communication and the components of satellite systems. It describes the history of satellites beginning with Sputnik 1 in 1957. The key components of a satellite are explained, such as batteries, thrusters, and transponders. Different types of satellite orbits - such as low earth orbit, medium earth orbit, and geostationary orbit - are defined. The uses of satellites include long distance communication, weather forecasting, television broadcasting, and remote sensing. Advantages include global coverage while disadvantages include high launch costs.
Satellite communication
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
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 Communication Theory
This presentation covers:
Basics of Satellite communication
Indian Communication satellites
Satellite link and elements of satellite communication
Frequency bands of satellite communication
Different orbits of satellite communication
Link budget calculations
satellite communication- UNIT-III.pptx
satellite communication jntuh
Satellite Link Design: Basic Transmission Theory, System Noise Temperature, and G/T Ratio,
Design of Down Links, Up Link Design, Design Of Satellite Links For Specified C/N, System Design
Examples.
Multiple Access: Frequency Division Multiple Access (FDMA), Inter modulation, Calculation of C/N,
Time Division Multiple Access (TDMA), Frame Structure, Examples, Satellite Switched TDMA
Onboard Processing, DAMA, Code Division Multiple Access (CDMA), Spread Spectrum Transmission
and Reception.
Satellite networks
This document provides an overview of satellite networks. It discusses the different types of satellite orbits including GEO, MEO, and LEO. GEO satellites orbit at 35,786 km above the earth's surface along the equator. MEO satellites orbit between 5,000-15,000 km above the earth. LEO satellites are much closer, ranging from 500-2,000 km. Examples of different satellite systems like GPS, Iridium, and Teledesic are also provided. The advantages of satellite networks include wide coverage area and independent transmission costs. Disadvantages include high launch costs and larger propagation delays.
Satellites presentation
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.
Orbital perturbations
This document discusses various types of orbital perturbations. It describes perturbation as a deviation from the normal or regular state of a moving object's path due to outside influences. The types of orbital perturbations discussed include those caused by third bodies, non-gravitational forces, and non-spherical masses. Specific forces mentioned that cause perturbations are atmospheric drag, solar radiation, outgassing, heating, and tidal friction. These perturbations can change elements of an orbit like the orientation, size, shape, and orbital plane. The effects of atmospheric drag, tidal friction, mutual gravitational attraction, and radiation pressure on satellites are summarized.
chapter 6 Satellite Systems.pptx
This document provides information on satellite communication, including the different types of satellite orbits. It begins with definitions of key terms like satellite, communication, and satellite communication. It then discusses the history of satellites, including early satellites from the 1950s-1960s and the introduction of geostationary satellites. The document also covers the advantages and disadvantages of satellite communication compared to terrestrial networks. It describes low earth orbit (LEO), medium earth orbit (MEO), and geostationary orbit (GEO) satellites and their characteristics. Finally, it discusses various applications of satellite communication systems.
satellite-communication
Satellite communication uses satellites in orbit around Earth to relay radio signals between Earth stations. There are three main types of satellite orbits - low Earth orbit (LEO), medium Earth orbit (MEO), and geosynchronous Earth orbit (GEO). Satellites have a payload that includes antennas and transponders to receive and transmit signals, and a bus that provides structure, power, and control. Common applications of satellite communication include satellite television broadcasting, internet access, telephony, and providing connectivity to remote areas.
satellite-communications
This document provides an overview of satellite communication systems. It discusses the need for satellites due to the curvature of the Earth, the different regions of space including low-Earth orbit (LEO), medium-Earth orbit (MEO), and geostationary orbit (GEO). It describes the basic components of a satellite system including satellites, ground stations, uplinks and downlinks. It also covers communication characteristics, advantages and disadvantages of satellite systems, and provides a historical overview of important milestones in satellite communication technology.
Satellite communication
The document discusses satellite communication and provides details about various topics related to satellites. It begins with defining what a satellite is and describing different types of satellites. It then discusses the advantages of satellite communication over terrestrial communication. The document outlines the components of a satellite and how satellites stay in orbit. It also covers look angle determination, antenna types, link design, satellite orbits, applications, and the future of satellite communication.
Satellite
This document provides an overview of satellite communications, including the basics of how satellites work, different types of satellite orbits, and capacity allocation methods. Satellites act as relay stations, receiving uplinks from earth stations and transmitting downlinks. The main types of orbits described are GEO, LEO, and MEO. GEO satellites remain stationary over one point on the equator, providing wide coverage but also greater delays. LEO and MEO satellites are closer but require networks to provide full coverage. Capacity is allocated using FDMA, which divides frequencies into channels, or TDMA, which divides time into slots.
Satellite communication lecture9
The document discusses the key components and subsystems of satellite communication systems. It is broken down into two main segments:
1) The space segment, which includes the satellites in orbit that provide the communication relay services, and the ground control stations that monitor and control the satellites.
2) The ground segment, which consists of the terminals on the Earth's surface that utilize the satellite communication capabilities. These include fixed, transportable, and mobile terminals.
The space segment has two main components - the satellite bus, which provides basic support functions like structure, power, thermal control etc., and the payload which provides the actual communication relay equipment like transponders and antennas.
Bangabandhu satellite-1
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.
satellite communication system
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.
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Introduction to satellite communication
This document provides an introduction to satellite communication. It defines what a satellite is, noting that the first Indian communication satellite was Aryabhatta, launched in 1975. Satellites are classified as either active or passive. Active satellites contain transponders that amplify and translate signals to avoid interference. Passive satellites can be natural, like the Moon, or artificial. The document also summarizes Kepler's laws of planetary motion, including his first law that planets orbit in ellipses with the Sun at one focus, his second law about equal areas being swept in equal times, and his third law relating orbital periods to semi-major axes.
Digital satellite communications
This document provides an outline for a course on digital satellite communications. It begins with course objectives, then provides an introduction to satellite communication principles. The basics section explains how satellite communication works, including earth station components and signal transmission. It also covers satellite types like GEO, LEO and MEO, as well as factors that impair signals. The document discusses frequency bands, network configurations, capacity allocation methods, and applications of satellite technology. Overall it aims to give students an overview of digital satellite communication systems and components.
communication satellite
Satellite communication has become an integral part of global communication infrastructure. Satellites relay radio signals between Earth stations to enable services like television broadcasting, telephone calls, and internet access across long distances. There are different types of communication satellites depending on their use - fixed satellites provide point-to-point communication, broadcast satellites deliver television and radio signals directly to receivers, and mobile satellites facilitate services like satellite phones. While satellites provide advantages like universal coverage and independence from terrestrial infrastructure, they also have disadvantages like high initial costs and potential signal interference issues.
Satellite communications ppt
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.
Earth station Parameters
Earth stations are systems that transmit and receive signals to and from satellites. They consist of subsystems like transmitters, receivers, antennas, and tracking equipment. Key parameters that affect earth station performance include transmitter power, antenna gain and efficiency, noise temperature, and local weather conditions. The ratio of antenna gain to noise temperature (G/T ratio) is important, as it determines the strength of the received signal relative to thermal noise. Path loss increases significantly with distance between the earth station and satellite due to signal dispersion over the propagation path. Various factors like operating frequency, elevation angle, polarization, and local meteorology can impact propagation impairments.
Leo satellite networks
This document summarizes a presentation on routing algorithms for low Earth orbit (LEO) satellite networks. It begins by defining the different types of satellite orbits - geostationary, medium Earth, highly elliptical, and low Earth orbit. It then focuses on LEO networks, discussing their architecture, applications, advantages over other networks, and open issues in routing. Several routing algorithms for LEO networks are also classified and described. The document concludes by stating that LEO networks are commonly used for broadcasting internet services due to their low cost and high data transmission rates.
satellite Communication
This presentation discusses satellite communication and the components of satellite systems. It describes the history of satellites beginning with Sputnik 1 in 1957. The key components of a satellite are explained, such as batteries, thrusters, and transponders. Different types of satellite orbits - such as low earth orbit, medium earth orbit, and geostationary orbit - are defined. The uses of satellites include long distance communication, weather forecasting, television broadcasting, and remote sensing. Advantages include global coverage while disadvantages include high launch costs.
Satellite communication
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
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 Communication Theory
This presentation covers:
Basics of Satellite communication
Indian Communication satellites
Satellite link and elements of satellite communication
Frequency bands of satellite communication
Different orbits of satellite communication
Link budget calculations
satellite communication- UNIT-III.pptx
satellite communication jntuh
Satellite Link Design: Basic Transmission Theory, System Noise Temperature, and G/T Ratio,
Design of Down Links, Up Link Design, Design Of Satellite Links For Specified C/N, System Design
Examples.
Multiple Access: Frequency Division Multiple Access (FDMA), Inter modulation, Calculation of C/N,
Time Division Multiple Access (TDMA), Frame Structure, Examples, Satellite Switched TDMA
Onboard Processing, DAMA, Code Division Multiple Access (CDMA), Spread Spectrum Transmission
and Reception.
Satellite networks
This document provides an overview of satellite networks. It discusses the different types of satellite orbits including GEO, MEO, and LEO. GEO satellites orbit at 35,786 km above the earth's surface along the equator. MEO satellites orbit between 5,000-15,000 km above the earth. LEO satellites are much closer, ranging from 500-2,000 km. Examples of different satellite systems like GPS, Iridium, and Teledesic are also provided. The advantages of satellite networks include wide coverage area and independent transmission costs. Disadvantages include high launch costs and larger propagation delays.
Satellites presentation
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.
Orbital perturbations
This document discusses various types of orbital perturbations. It describes perturbation as a deviation from the normal or regular state of a moving object's path due to outside influences. The types of orbital perturbations discussed include those caused by third bodies, non-gravitational forces, and non-spherical masses. Specific forces mentioned that cause perturbations are atmospheric drag, solar radiation, outgassing, heating, and tidal friction. These perturbations can change elements of an orbit like the orientation, size, shape, and orbital plane. The effects of atmospheric drag, tidal friction, mutual gravitational attraction, and radiation pressure on satellites are summarized.
chapter 6 Satellite Systems.pptx
This document provides information on satellite communication, including the different types of satellite orbits. It begins with definitions of key terms like satellite, communication, and satellite communication. It then discusses the history of satellites, including early satellites from the 1950s-1960s and the introduction of geostationary satellites. The document also covers the advantages and disadvantages of satellite communication compared to terrestrial networks. It describes low earth orbit (LEO), medium earth orbit (MEO), and geostationary orbit (GEO) satellites and their characteristics. Finally, it discusses various applications of satellite communication systems.
satellite-communication
Satellite communication uses satellites in orbit around Earth to relay radio signals between Earth stations. There are three main types of satellite orbits - low Earth orbit (LEO), medium Earth orbit (MEO), and geosynchronous Earth orbit (GEO). Satellites have a payload that includes antennas and transponders to receive and transmit signals, and a bus that provides structure, power, and control. Common applications of satellite communication include satellite television broadcasting, internet access, telephony, and providing connectivity to remote areas.
satellite-communications
This document provides an overview of satellite communication systems. It discusses the need for satellites due to the curvature of the Earth, the different regions of space including low-Earth orbit (LEO), medium-Earth orbit (MEO), and geostationary orbit (GEO). It describes the basic components of a satellite system including satellites, ground stations, uplinks and downlinks. It also covers communication characteristics, advantages and disadvantages of satellite systems, and provides a historical overview of important milestones in satellite communication technology.
Satellite communication
The document discusses satellite communication and provides details about various topics related to satellites. It begins with defining what a satellite is and describing different types of satellites. It then discusses the advantages of satellite communication over terrestrial communication. The document outlines the components of a satellite and how satellites stay in orbit. It also covers look angle determination, antenna types, link design, satellite orbits, applications, and the future of satellite communication.
Satellite
This document provides an overview of satellite communications, including the basics of how satellites work, different types of satellite orbits, and capacity allocation methods. Satellites act as relay stations, receiving uplinks from earth stations and transmitting downlinks. The main types of orbits described are GEO, LEO, and MEO. GEO satellites remain stationary over one point on the equator, providing wide coverage but also greater delays. LEO and MEO satellites are closer but require networks to provide full coverage. Capacity is allocated using FDMA, which divides frequencies into channels, or TDMA, which divides time into slots.
Satellite communication lecture9
The document discusses the key components and subsystems of satellite communication systems. It is broken down into two main segments:
1) The space segment, which includes the satellites in orbit that provide the communication relay services, and the ground control stations that monitor and control the satellites.
2) The ground segment, which consists of the terminals on the Earth's surface that utilize the satellite communication capabilities. These include fixed, transportable, and mobile terminals.
The space segment has two main components - the satellite bus, which provides basic support functions like structure, power, thermal control etc., and the payload which provides the actual communication relay equipment like transponders and antennas.
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Bangabandhu satellite-1
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.
satellite communication system
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.
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Satellite technology has evolved over time from early experimental satellites like Telstar to modern geostationary communication satellites. It has had major impacts on social life by enabling global telecommunications. The key concepts are defined, including the components of a satellite system like the satellite itself, earth stations, and different types of orbits. The development of satellite technology is reviewed from early proposals and experiments to the establishment of systems like Intelsat and domestic satellite networks.
Bangabandhu 1 satellite । Bangabandhu Satellite-1
The Bangabandhu Satellite-1 is the first Bangladeshi geostationary communications and Broadcasting Satellite. It was manufactured by Thales Alenia Space and launched on 11 May 2018.[1] The project is being implemented by Bangladesh Telecommunication Regulatory Commission (BTRC) and was the first payload launched by a Falcon 9 Block 5 rocket of SpaceX.[3]
Bangladesh Government formed a Government owned Bangladesh Communication Satellite Company Limited, BCSCL with the aim to operate the Bangabandhu Satellite-1.[4]
Bangabandhu-1 launched from Kennedy Space Center on Merritt Island, Florida, USA and utilizes ground control stations built by Thales Alenia Space with its partner Spectra[disambiguation needed] in Betbunia, and Gazipur. The satellite is based on the highly secured and reliable Spacebus-4000B2 platform and currently located at longitude 119.09°E.
Bangabandhu satellite i
What Is a Satellite?
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.
Earth and the moon are examples of natural satellites. Thousands of artificial, or man-made, satellites orbit Earth. Some take pictures of the planet that help meteorologists predict weather and track hurricanes. Some take pictures of other planets, the sun, black holes, dark matter or faraway galaxies. These pictures help scientists better understand the solar system and universe.
Still other satellites are used mainly for communications, such as beaming TV signals and phone calls around the world. A group of more than 20 satellites make up the Global Positioning System, or GPS. If you have a GPS receiver, these satellites can help figure out your exact location.
Why Are Satellites Important?
The bird's-eye view that satellites have allows them to see large areas of Earth at one time. This ability means satellites can collect more data, more quickly, than instruments on the ground.
Satellites also can see into space better than telescopes at Earth's surface. That's because satellites fly above the clouds, dust and molecules in the atmosphere that can block the view from ground level.
Before satellites, TV signals didn't go very far. TV signals only travel in straight lines. So they would quickly trail off into space instead of following Earth's curve. Sometimes mountains or tall buildings would block them. Phone calls to faraway places were also a problem. Setting up telephone wires over long distances or underwater is difficult and costs a lot.
With satellites, TV signals and phone calls are sent upward to a satellite. Then, almost instantly, the satellite can send them back down to different locations on Earth.
Bangabandhu Satellite-I
Bangabandhu 1 (BD-1), the first geostationary communications satellite of Bangladesh, was developed by the Bangladesh Telecommunication Regulatory Commission (BTRC). The satellite was launched into geostationary earth orbit (GEO) in May 2018.
Located at 119.1°E longitude orbital position, Bangabandhu 1 provides broadcasting and telecommunication services to rural areas in Bangladesh. It also supports profitable services, including direct-to-home (DTH) services.
It offers Ku-band and C-band services across Bangladesh and its territorial waters of the Bay of Bengal, India, Nepal, Bhutan, Sri Lanka, the Philippines, and Indonesia.
The satellite enables the nation to save approximately BDT1.08bn ($14m) spent on satellite rents a year. BTRC also plans to launch follow-on series of BD-2 and BD-3 satellites in phases.
History Of Dth
The document provides a history of digital satellite communication systems. It discusses the three phases of the Defense Satellite Communications System (DSCS) program, with phase one launching 26 small communications satellites between 1966-1980. Phase two launched from 1971-1980 to replace phase one satellites with increased transmission capabilities. Other military communication systems discussed include the FLTSATCOM, LEASAT, and Ultra-High Frequency Follow On (UFO) satellite constellations. The document examines how these systems evolved to support increasing military communication needs.
Lecture 01.pptx
This document provides an overview of satellite communication principles and the evolution of communication satellites. It discusses how Arthur C. Clarke first conceived of the idea of communication satellites in geostationary orbits in 1945. It then summarizes the key milestones in the development of communication satellites, including early satellites launched by the US and USSR in the late 1950s, the establishment of international cooperation organizations like INTELSAT and Comsat in the 1960s, and the growth of satellite capabilities over time. The document also provides details about Bangladesh's first communication satellite, Bangabandhu Satellite-1, and describes different types of communication satellites.
16518 history lect 1
Satellite communication has progressed significantly since Arthur C. Clarke first proposed the concept in 1945. Today, satellite systems provide broadband internet, audio/video distribution, navigation, customer service, military communications, and more. They are expected to play a key role in emerging 4G networks by providing wide-area coverage. The use of satellites for communication is now common, with many homes having satellite dishes for television reception. Satellites carry large amounts of data, telephone calls, and television signals worldwide.
Satellite
A satellite is an object placed in orbit around Earth for purposes like weather forecasting, search and rescue, and scientific research. The first satellite, Sputnik, was launched in 1957. Satellites can be placed in different orbits like low Earth orbit (LEO), medium Earth orbit (MEO), and geostationary orbit (GEO). They provide global connections and coverage between base stations on Earth, although latency is higher for satellites farther from Earth. Common applications of satellites include weather forecasting, radio/TV broadcasting, navigation, and global mobile communication.
Satellite comm lect. final 1
Satellite communication involves transmitting information from one location to another using an artificial satellite orbiting Earth. A communication satellite receives signals from transmitting ground stations, amplifies and processes the signals, and transmits them back to receiving ground stations on Earth. The key components of satellite communication systems are the space segment, consisting of the satellite, and the ground segment, consisting of transmitting and receiving earth stations.
Satellite communication; a realistic alternative
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satellite.pptx
This document provides an overview of satellite communication, including:
- The basic components and working of satellite communication systems, including satellites in orbit that transmit signals between ground stations.
- The different types of satellite orbits used in communication systems, including geostationary orbit which allows antennas to remain fixed, and low earth orbit.
- Key events in the history and development of satellite communication technology, including early concepts in science fiction and the launch of the first artificial satellite Sputnik 1.
- The services and applications that satellite communication enables, such as television and radio broadcasting, telephone networks, and internet access globally.
Satellite system
Assignment Name: Satellite System
Department: Computer Science and Engineering
Course Name: Computer Networks
Course Code: CSE 317
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This report gives an opportunity to learn the practical aspects of the knowledge of Electronics and communication. Doordarshan Kendra is a milestone in the field of entertainment and education media source. Doordarshan, Lucknow is the Program Production Center and transmission. The studios are housed at same campus and the transmitter is located at the Lucknow.
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A satellite system is a set of gravitationally bound objects in orbit around a planetary-mass object or minor planet, or its barycenter. Generally speaking, it is a set of natural satellites (moons), although such systems may also consist of bodies such as circumplanetary disks, ring systems, moonlets, minor-planet moons, and artificial satellites any which may themselves have satellite systems of their own.
orbit information around tthe earth
Satellite technology has progressed significantly over the last 50 years and now provides broadband communications, audio/video distribution, navigation, customer service, and military applications. Satellites play an important role in emerging 4G infrastructure and the vision of connectivity anywhere, anytime. Satellites orbit Earth and help with communication, mapping weather, TV, internet, and phone services. There are three main types of orbits - low Earth orbit (LEO), medium Earth orbit (MEO), and geostationary Earth orbit (GEO).
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https://marssocietyuk.org/events/european-mars-conference-2019/
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Satellite communication and it's future
- 1. Course Name: Statistics and Probability Course Code: STA 133 Daffodil International University Department of CSE 1
- 2. @NAMHIN Satellite Communication and it’s Future 2 By, MD.TANVIR HOSSAIN Department of CSE
- 3. Agenda Introduction Background How it works Some statistics about satellite Satellite applications Advantage Disadvantages Satellite in Bangladesh The future of satellite communication Conclusion
- 4. Satellite Communication A communications satellite is an artificial satellite that relays and amplifies radio telecommunications signals via a transponder; it creates a communication channel between a source transmitter and a receiver at different locations on Earth. 4
- 5. Background: The concept of the geostationary communications satellite was first proposed by Arthur C. Clarke, building on work by Konstantin Tsiolkovsky. The first artificial Earth satellite was Sputnik 1. Put into orbit by the Soviet Union on October 4, 1957 The first artificial satellite used solely to further advances in global communications was a balloon named Echo 1. Echo 1 was the world's first artificial communications satellite capable of relaying signals to other points on Earth. Sputnik 1
- 6. How it works Geostationary orbit (GEO) Low earth orbit (LEO) Medium earth orbit (MEO) Molniya orbit Four unique types of orbits
- 9. 9 Satellite applications There are three types of communication services that satellites provide: Telecommunications broadcasting data communications.
- 10. Satellite applications 10 Amateur radio Internet access Military Telephone Telegraph Wireless communications Television Radio broadcasting
- 12. Advantage The satellites send television signals directly to homes. The signals from a central station that generates programming to smaller stations that send the signals locally via the cables or the airwaves. The news broadcasts are sent from the field to the studio via the satellite. The satellites provide in the flight phone communications on the airplanes . They are the main conduit of voice communication for the rural areas and the areas where the phone lines are damaged after a disaster. 12
- 13. Disadvantages of Satellite Communication ■ The launching of the satellite is very expensive. ■ It requires expensive ground stations. ■ It has limited frequency spectrum and orbital space. ■ It requires constant monitoring from the ground. 13
- 14. Satellite in Bangladesh: The Bangabandhu-1 (BD-1), will be the first Bangladeshi geostationary communications satellite operated by Bangladesh Telecommunication Regulatory Commission (BTRC) which is scheduled to launch in 2017. It is expected to be located at 119° East longitude geostationary slot. It is named after the father of the nation Bangabandhu Sheikh Mujibur Rahman. It will be built by Thales Alenia Space. The total cost of the satellite is 248 million US dollars (Tk 19.51 billion). Bangabandhu-1 carries a total of 40 Ku and C-band transponders with a capacity of 1600 megahertz and a predicted life span of 15 years. Bangabandhu-1 is scheduled to be launched in December 2017 on a Falcon 9 rocket.[1] Bangabandhu-1
- 16. BRAC Onnesha BRAC Onnesha was the first Bangladeshi satellite launched into space
- 18. The future of satellite communication ■ Future communication satellites will have more onboard processing capabilities, more power, and larger-aperture antennas that will enable satellites to handle more bandwidth. ■ Further improvements in satellites’ propulsion and power systems will increase their service life to 20–30 years from the current 10–15 years. ■ With increasing video, voice, and data traffic requiring larger amounts of bandwidth, there is no dearth of emerging applications that will drive demand for the satellite services in the years to come. . 18
- 19. The future of satellite communication ■ The communications satellites have the ability to rapidly communicate between a number of widely dispersed locations. ■ big manufacturing companies and the department stores to perform inventory management , like as banking services to even small towns. ■ GPS locators are increasingly included in the car direction services . GPS based systems are used by the civilians and the military for navigation on land , the sea , and the air. 19
- 20. Conclusion: Satellite Communication is very important for our modern world. In one word we cant imagine one second with out it. In every sphere of life we use it, and the future use of satellite is more glorious.
- 21. International Space Station A satellite after arranging everything
- 22. Launch Station
- 24. Thank You ! 24