What is a satellite?
What is Satellite Communication?
A satellite is a moon, planet or machine that orbits a planet or star. For example, Earth is a satellite .
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.
Satellite Internet is the ability to transmit and receive data from a relatively small satellite dish on Earth and communicate with an orbiting geostationary satellite 22,300 miles above Earth's equator.
LEO
MEO
GEO
Presentation on Satellite Communication
Presentation on Satellite Communication
Outlines:
History
Definition
Communication system
Architecture
Operation of satellite
Elements
>Space Segment
>Ground Segment
Earth Stations
Digital Earth Station
Orbits
Geostationary Orbit (GSO)
Non-Geostationary Orbit (NGSO)
Different Satellite Communications : Services
Advantages OF SATELLITE COMMUNICATION
Applications OF SATELLITE COMMUNICATION
Future
Conclusion
What is a satellite?
What is Satellite Communication?
A satellite is a moon, planet or machine that orbits a planet or star. For example, Earth is a satellite .
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.
Satellite Internet is the ability to transmit and receive data from a relatively small satellite dish on Earth and communicate with an orbiting geostationary satellite 22,300 miles above Earth's equator.
LEO
MEO
GEO
Presentation on Satellite Communication
Presentation on Satellite Communication
Outlines:
History
Definition
Communication system
Architecture
Operation of satellite
Elements
>Space Segment
>Ground Segment
Earth Stations
Digital Earth Station
Orbits
Geostationary Orbit (GSO)
Non-Geostationary Orbit (NGSO)
Different Satellite Communications : Services
Advantages OF SATELLITE COMMUNICATION
Applications OF SATELLITE COMMUNICATION
Future
Conclusion
This Powerpoint Presentation is basically about satellite communication .It also consist information about various orbits and applications of satellite communication in different field.
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
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 Powerpoint Presentation is basically about satellite communication .It also consist information about various orbits and applications of satellite communication in different field.
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
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
Foundations of Satellite Communication: Understanding the Basics.pptxpritamlangde
Basics of Satellites:
Satellites are objects that orbit around larger bodies in space. They are primarily used for communication, navigation, Earth observation, weather monitoring, scientific research, and more. Satellites can be categorized based on their orbits, functions, and sizes. They are launched into space using rockets and placed into specific orbits, depending on their intended purpose
1. Geostationary Earth Orbit (GEO) Satellites:
GEO satellites orbit the Earth at an altitude of approximately 35,786 kilometers (22,236 miles) above the equator.
They have an orbital period that matches the Earth's rotation, allowing them to remain stationary relative to a fixed point on the Earth's surface.
GEO satellites are commonly used for communication, broadcasting, and weather monitoring because they provide continuous coverage of a specific region.
2. Low Earth Orbit (LEO) Satellites:
LEO satellites orbit the Earth at altitudes ranging from about 160 kilometers (100 miles) to 2,000 kilometers (1,200 miles) above the Earth's surface.
They complete an orbit around the Earth in a relatively short amount of time, typically ranging from 90 minutes to 2 hours.
LEO satellites are used for various purposes, including Earth observation, remote sensing, satellite imaging, scientific research, and satellite constellations for global communications.
3. Medium Earth Orbit (MEO) Satellites:
MEO satellites orbit the Earth at altitudes ranging from about 2,000 kilometers (1,200 miles) to 35,786 kilometers (22,236 miles) above the Earth's surface.
They have orbital periods longer than LEO satellites but shorter than GEO satellites.
MEO satellites are often used for navigation systems, such as the Global Navigation Satellite Systems (GNSS) like GPS (Global Positioning System), GLONASS (Global Navigation Satellite System), and Galileo.
4. Molniya Orbit Satellites:
Molniya orbit is a specific type of highly elliptical orbit with a high inclination angle.
Satellites in Molniya orbits have a long dwell time over high latitudes, making them suitable for communication and observation services in polar regions.
These satellites are used for applications like communication in northern latitudes, remote sensing, and reconnaissance.
5. High Altitude Platform Stations (HAPs):
HAPs are not traditional satellites but rather platforms stationed at high altitudes in the Earth's atmosphere, typically in the stratosphere.
They are used to provide communication and surveillance services over a specific area.
HAPs can be equipped with telecommunications equipment, antennas, and other technologies to relay signals between ground stations or act as relays for satellite communication systems. capacity allocation in satellite communications are Frequency Division Multiple Access (FDMA) and Time Division Multiple Access (TDMA).
This PPT tells you about satellite communication system, it's advantages and the importance of the satellite communication system and the general applications of satellite and advantages about it
This is a presentation by Dada Robert in a Your Skill Boost masterclass organised by the Excellence Foundation for South Sudan (EFSS) on Saturday, the 25th and Sunday, the 26th of May 2024.
He discussed the concept of quality improvement, emphasizing its applicability to various aspects of life, including personal, project, and program improvements. He defined quality as doing the right thing at the right time in the right way to achieve the best possible results and discussed the concept of the "gap" between what we know and what we do, and how this gap represents the areas we need to improve. He explained the scientific approach to quality improvement, which involves systematic performance analysis, testing and learning, and implementing change ideas. He also highlighted the importance of client focus and a team approach to quality improvement.
Unit 8 - Information and Communication Technology (Paper I).pdfThiyagu K
This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
We all have good and bad thoughts from time to time and situation to situation. We are bombarded daily with spiraling thoughts(both negative and positive) creating all-consuming feel , making us difficult to manage with associated suffering. Good thoughts are like our Mob Signal (Positive thought) amidst noise(negative thought) in the atmosphere. Negative thoughts like noise outweigh positive thoughts. These thoughts often create unwanted confusion, trouble, stress and frustration in our mind as well as chaos in our physical world. Negative thoughts are also known as “distorted thinking”.
The Roman Empire A Historical Colossus.pdfkaushalkr1407
The Roman Empire, a vast and enduring power, stands as one of history's most remarkable civilizations, leaving an indelible imprint on the world. It emerged from the Roman Republic, transitioning into an imperial powerhouse under the leadership of Augustus Caesar in 27 BCE. This transformation marked the beginning of an era defined by unprecedented territorial expansion, architectural marvels, and profound cultural influence.
The empire's roots lie in the city of Rome, founded, according to legend, by Romulus in 753 BCE. Over centuries, Rome evolved from a small settlement to a formidable republic, characterized by a complex political system with elected officials and checks on power. However, internal strife, class conflicts, and military ambitions paved the way for the end of the Republic. Julius Caesar’s dictatorship and subsequent assassination in 44 BCE created a power vacuum, leading to a civil war. Octavian, later Augustus, emerged victorious, heralding the Roman Empire’s birth.
Under Augustus, the empire experienced the Pax Romana, a 200-year period of relative peace and stability. Augustus reformed the military, established efficient administrative systems, and initiated grand construction projects. The empire's borders expanded, encompassing territories from Britain to Egypt and from Spain to the Euphrates. Roman legions, renowned for their discipline and engineering prowess, secured and maintained these vast territories, building roads, fortifications, and cities that facilitated control and integration.
The Roman Empire’s society was hierarchical, with a rigid class system. At the top were the patricians, wealthy elites who held significant political power. Below them were the plebeians, free citizens with limited political influence, and the vast numbers of slaves who formed the backbone of the economy. The family unit was central, governed by the paterfamilias, the male head who held absolute authority.
Culturally, the Romans were eclectic, absorbing and adapting elements from the civilizations they encountered, particularly the Greeks. Roman art, literature, and philosophy reflected this synthesis, creating a rich cultural tapestry. Latin, the Roman language, became the lingua franca of the Western world, influencing numerous modern languages.
Roman architecture and engineering achievements were monumental. They perfected the arch, vault, and dome, constructing enduring structures like the Colosseum, Pantheon, and aqueducts. These engineering marvels not only showcased Roman ingenuity but also served practical purposes, from public entertainment to water supply.
The French Revolution, which began in 1789, was a period of radical social and political upheaval in France. It marked the decline of absolute monarchies, the rise of secular and democratic republics, and the eventual rise of Napoleon Bonaparte. This revolutionary period is crucial in understanding the transition from feudalism to modernity in Europe.
For more information, visit-www.vavaclasses.com
How to Create Map Views in the Odoo 17 ERPCeline George
The map views are useful for providing a geographical representation of data. They allow users to visualize and analyze the data in a more intuitive manner.
Welcome to TechSoup New Member Orientation and Q&A (May 2024).pdfTechSoup
In this webinar you will learn how your organization can access TechSoup's wide variety of product discount and donation programs. From hardware to software, we'll give you a tour of the tools available to help your nonprofit with productivity, collaboration, financial management, donor tracking, security, and more.
Instructions for Submissions thorugh G- Classroom.pptxJheel Barad
This presentation provides a briefing on how to upload submissions and documents in Google Classroom. It was prepared as part of an orientation for new Sainik School in-service teacher trainees. As a training officer, my goal is to ensure that you are comfortable and proficient with this essential tool for managing assignments and fostering student engagement.
2. How do Satellites Work
Two Stations on Earth want to communicate through radio broadcast but
are too far away to use conventional means.
The two stations can use a satellite as a relay station for their
communication
One Earth Station sends a transmission to the satellite. This is called a
Uplink.
The satellite Transponder converts the signal and sends it down to the
second earth station. This is called a Downlink.
Advantages of Satellites
The advantages of satellite communication over terrestrial communication
are:
The coverage area of a satellite greatly exceeds that of a terrestrial
system.
Transmission cost of a satellite is independent of the distance from the
center of the coverage area.
Satellite to Satellite communication is very precise.
Higher Bandwidths are available for use.
Disadvantages of Satellites
The disadvantages of satellite communication:
Launching satellites into orbit is costly.
Satellite bandwidth is gradually becoming used up.
There is a larger propagation delay in satellite communication than in
terrestrial communication.
3. How Satellites are used
Service Types
Fixed Service Satellites (FSS)
• Example: Point to Point Communication
Broadcast Service Satellites (BSS)
• Example: Satellite Television/Radio
• Also called Direct Broadcast Service (DBS).
Mobile Service Satellites (MSS)
• Example: Satellite Phones
Types of Satellites
Satellite Orbits
GEO
LEO
MEO
HAPs
Geostationary Earth Orbit (GEO)
These satellites are in orbit 35,863 km above the earth’s surface along the
equator.
Objects in Geostationary orbit revolve around the earth at the same speed
as the earth rotates. This means GEO satellites remain in the same position
relative to the surface of earth.
4. Low Earth Orbit (LEO)
LEO satellites are much closer to the earth than GEO satellites, ranging
from 500 to 1,500 km above the surface.
LEO satellites don’t stay in fixed position relative to the surface, and are
only visible for 15 to 20 minutes each pass.
A network of LEO satellites is necessary for LEO satellites to be useful
Medium Earth Orbit (MEO)
A MEO satellite is in orbit somewhere between 8,000 km and 18,000 km
above the earth’s surface.
MEO satellites are similar to LEO satellites in functionality.
MEO satellites are visible for much longer periods of time than LEO
satellites, usually between 2 to 8 hours.
MEO satellites have a larger coverage area than LEO satellites.
Other Orbits
Molniya Orbit Satellites
Used by Russia for decades.
Molniya Orbit is an elliptical orbit. The satellite remains in a nearly
fixed position relative to earth for eight hours.
A series of three Molniya satellites can act like a GEO satellite.
Useful in near polar regions.
5.
6. ELEMENTS OF SATELLITE COMMUNICATIONS SYSTEM
• Space Segment
Satellite (transponders etc)
Means for launching satellite
Satellite control centre for station keeping of the satellite
• Ground Segment
Earth Stations
Rear Ward Communication links
User terminals and interfaces
Network control centre
7. SATELLITE CONTROL CENTRE
Satellite Control Centre performs the following function:-
1. Tracking of the satellite
2. Receiving data
3. Determining Orbital parameters from Tracking and Ranging data
4. Commanding the Satellite for station keeping
5. Switching ON/OFF of different subsystems as per the operational
requirements
6. Thermal management of satellite.
8. 7. Eclipse management of satellite
8. Communications subsystems configuration management.
9. Satellite Bus subsystems configuration management etc.
CONCLUSION
Satellites remain the best utilization used for
communications due to their speed and other
advantages mentioned in this presentation.