Communications satellite - Wikipedia
A communications satellite is an artificial satellite that relays and amplifies radio telecommunication signals via a transponder; it creates a communication channel between a source transmitter and a receiver at different locations on Earth.
Satellite communication | Definition, History, & Facts | Britannica
6 天之前 · Satellite communication, the use of artificial satellites to provide communication links between various points on Earth. Satellite communications play a vital role in the global telecommunications system. Learn more about satellite communication in this article.
Communications Satellites: Making the Global Village Possible
2010年11月30日 · The first major geosynchronous satellite project was the Defense Department’s ADVENT communications satellite. It was three-axis stabilized rather than spinning. It had an antenna that directed its radio energy at the earth.
Space Communications: 7 Things You Need to Know - NASA
2020年10月6日 · Communicating from space involves more than pointing a spacecraft’s antenna at the Earth. NASA has an extensive network of antennas around the globe — over all seven continents — to receive transmissions from spacecraft.
Communications Satellites - National Air and Space Museum
Learn about how a communications satellite works and how it helps us to connect to each other around the world.
Communications satellite | Orbital Positioning, Data Transfer
Communications satellite, Earth-orbiting system capable of receiving a signal (e.g., data, voice, TV) and relaying it back to the ground. Communications satellites have been a significant part of domestic and global communications since the 1970s. Typically they move in …
Satellite communication - Orbit, Signals, Relay | Britannica
2024年9月4日 · A satellite is basically a self-contained communications system with the ability to receive signals from Earth and to retransmit those signals back with the use of a transponder —an integrated receiver and transmitter of radio signals.
Satellite Communications in the New Space Era: A Survey and …
2020年10月1日 · Satellite communications (SatComs) have recently entered a period of renewed interest motivated by technological advances and nurtured through private investment and ventures. The present survey aims at capturing the state of the art in SatComs, while highlighting the most promising open research topics.
Satellite Communication: Definition, Block Diagram, Advantages ...
A communication satellite is an artificial satellite that transmits the signal via a transponder by creating a channel between the transmitter and the receiver at different Earth locations. Telephone, radio, television, internet, and military applications use satellite communications.
Satellite Communications 101: A Comprehensive Guide for …
2023年8月24日 · Satellite communication is a technology that uses artificial satellites to transmit and receive signals. These signals can carry a wide variety of data, from television broadcasts to internet data and even secure military communications.
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