Antenna Subsystem In Satellite Communication

Those are satellite acquisition and tracking of satellite.

Antenna subsystem in satellite communication.

The tracking system present in the earth station performs mainly two functions. The objective of this chapter is to provide a comprehensive end to end overview of existing communication subsystems residing on both the satellite bus and payloads. Those are receiving of signals which are coming from earth station and transmitting signals to one or more earth stations based on the requirement. Satellite systems ravikiran s.

For the satellite and ground facility for a communications satellite application the elements on the ground include the ttc m antenna telemetry receiver command transmitter tracking subsystem and associated processing and analysis functions. In satellite communication system various operations take place. This tracking can be done in one of the. Antennas are present in both satellite and earth station.

The subsystem which provides the connecting link between transmitting and receiving antennas of a satellite is known as transponder. Explain with neat diagram the antennas used in satellite communication. 2 explain briefly the offset feed used with paraboloidal reflector antenna stating its main advantages and disadvantages. This maybe linear dipole helix horn antenna array and parabolic reflector.

Attitude orbit control system ttc m system power system communication subsystems satellite antennas space qualification equipment reliability 3. For example moon is a natural satellite of earth. The tracking subsystem keeps track with the satellite and make sure that the beam comes towards it in order to establish the communication. A satellite communication consists of mainly two segments.

The function of each subsystem and the relationships to the others will be. Satellite control and monitoring is accomplished through monitors and keyboard interface. It is one of the most important subsystem of space segment subsystems. These subsystems include command and mission data handling telemetry and tracking and the antenna payloads for both command telemetry and mission data.

Satellite communication introduction. In general terms a satellite is a smaller object that revolves around a larger object in space. We know that communication refers to the exchange sharing of information between two or more entities through any medium or channel. Satellite communication system uses a variety of antenna system.

In other words it is nothing but sending receiving and processing of. Now let us discuss about the satellite antennas. Those are space segment and earth segment. Among which the main operations are orbit controlling altitude of satellite monitoring and controlling of other subsystems.

Transponder performs the functions of both transmitter and receiver responder in a satellite. May 2013 may 2014 dec 2014.