Patent ID: 8385391

Claim:
A two-terminal closed-loop satellite communication system where pre-distortion coefficients are calculated for a first terminal at a second remote terminal, comprising: a first terminal, wherein said first terminal comprises: a pre-distortion multiplication module, a transmitter, and a receiver; and a second terminal, wherein said second terminal comprises: a receiver, a pre-distortion coefficient calculator, and a transmitter, wherein: said first terminal is located in a geographically distinct location from said second terminal; said first terminal prepares and transmits a signal to said second terminal through a satellite communication channel; said signal is distorted by said first terminal prior to transmission to said second terminal and by said satellite communication channel; said transmitted signal is received at the receiver of said second terminal through the satellite communication channel; said pre-distortion calculator determines the pre-distortion coefficients by demodulating and decoding the signal received from the first terminal, regenerating an ideal signal from the demodulated and decoded signal, comparing said ideal signal to said received signal, and calculating said pre-distortion coefficients based on said comparison, said pre-distortion coefficients being calculated for use at said first terminal, wherein said pre-distortion coefficients correct for distortions caused by the environment; said second terminal transmits said pre-distortion coefficients to said receiver at said first terminal through the satellite communication channel; said receiver at said first terminal receives said pre-distortion coefficients through the satellite communication channel; and said first terminal applies said pre-distortion coefficients to subsequently transmitted signals.