VIGNAN INSTITUTE OF TECHNOLOGY AND MANAGEMENT
SATELLITE COMMUNICATION SYSTEMS
TYPES OF SATELLITE
Active satellites are those satellites which are used for linking, transmitting and processing of signals.
Ex: - All the communication satellites.
Passive Satellite:Passive satellites are those satellites which are only used for linking of two stations through space. In this
process, the loss of power is more.
SATELLITE SYSTEMS:There are two types of satellite systems
1. Ground to ground.
2. Ground to cross-link Ground.
Ground to Ground
In Ground to Ground satellite systems the earth station “A” sends signal to the satellite, which after
processing retransmits to another earth station “B”.
Ground to cross-link Ground
If the earth stations are situated such that they are not in the line of sight of a common satellite, then a link
between the two satellites in space will be devolved, and the signal is send to the earth station.
For example: - If two satellites S1, S2 covers area x1, x2 respectively and