Satellite communication | Definition, History, & Facts | Britannica
2024年12月2日 · 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.
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 Communications Systems: Systems, Techniques and …
The revised and updated sixth edition of Satellite Communications Systems contains information on the most recent advances related to satellite communications systems, technologies, network architectures and new requirements of services and applications.
Satellite communication - Orbit, Signals, Relay | Britannica
2024年12月2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.
Communications Satellites - National Air and Space Museum
Satellites brought radical change, filling in communication gaps and providing telephone and television connection nearly worldwide. Television could now provide hundreds of millions of people cross the globe with ground-breaking news and images. Soon the tagline "live via satellite" became a staple of TV viewing.
Satellite Communication System - an overview - ScienceDirect
The communication architecture of a satellite system includes the satellite payload communication subsystem, satellite crosslink communication subsystem, and the communication subsystem linking the satellite with the ground control as well as the ground infrastructure segments.
Communications Satellites: Making the Global Village Possible
2010年11月30日 · Satellite communications is also the only truly commercial space technology—generating billions of dollars annually in sales of products and services.
Satellite Communication - Introduction - Online Tutorials Library
A communication satellite is nothing but a microwave repeater station in space. It is helpful in telecommunications, radio and television along with internet applications. A repeater is a circuit, which increases the strength of the received signal and then transmits it.
Satellite Basics - Intelsat
Satellite communications involves these steps: 1. Data is sent via a ground network (sometimes called a terrestrial or fiber network) 2. An uplink ground station (sometimes called an Earth station) or other ground equipment transmits the desired signal to the satellite. 3. The satellite amplifies the incoming signal and changes the frequency. 4.
Satellite communication - Spacecraft, Orbit, Signals | Britannica
2024年12月2日 · Satellite communication - Spacecraft, Orbit, Signals: The idea of communicating through a satellite first appeared in the short story titled “The Brick Moon,” written by the American clergyman and author Edward Everett Hale and published in The Atlantic Monthly in 1869–70.