It creates a communication channel between a source transmitter and a receiver at different locations on earth communications satellites are used for television telephone radio internet and military applications.
General structure of satellite communication system.
The space station is the segment of the satellite communication system that is carried to the outer space and set to revolve the earth in a pre defined orbit.
This artificial satellite is positioned in space to facilitate the communication among the various points on the earth.
Satellite communication system is a mode of communication which uses the artificial satellite for communication.
Introduction to satellite communication is designed to meet the needs of working professionals and students.
It is composed of three units.
A communications satellite is in a geostationary equatorial orbit with a period of 24 h.
The uplink frequencies 5 9 6 4 ghz are used for t n from the earth station to the satellite and down link frequencies 3 7 4 2ghz.
A satellite has to withstand the shock of being accelerated during launch up to the.
Block diagram of satellite communication system satellite communication system block diagram.
The spin rate ω s about its axis of symmetry is 1 rpm and the moment of inertia about the spin axis is 550 kg m 2 the moment of inertia about transverse axes through the mass center g is 225 kg m 2 if the spin axis is initially pointed toward the earth calculate the magnitude and direction of.
The first edition was a response to a request by many friends and associates for a basic and clear book that provides newcomers with an accessible way to gain knowledge and become productive.
For instance communication can be possible using light in an optical communication system radio signals can be used to communicate in the radio communication system and telecommunication is used for communication using satellite.
A communications satellite is an artificial satellite that relays and amplifies radio telecommunications signals via a transponder.
Elements of satellite communication the basic element of satellite communication are earth station terrestrial system and users the basic structure of a satellite communication are shown in the.
Satellite communication satellite communication how satellites work.
Let us now look into the basic structure of a satellite communication system.
We know that communication refers to the exchange sharing of information between two or more entities through any medium or channel.
In other words it is nothing but sending receiving and processing of information.
This article discusses an overview of the satellite communication system.
In general terms a satellite is a smaller object that revolves around a larger object in space.
There are about 2 000 communications satellites.
For example moon is a natural satellite of earth.
Types of satellite communication.
