Closed loop power control for low earth orbit satellite communic

Details Closed loop power control for low earth orbit satellite communic Closed loop power control for low earth orbit satellite communic

1995-06-06

1997-04-08

Chin, Stephen

Pulse or digital communications

Repeaters

Testing

375211, 375221, 455 134, 455 521, 455 69, 370316, H04B 1500, H04L 2730, H04K 100

Patent

active

056195257

ABSTRACT:
A satellite communication system (10) includes at least one satellite communication signal repeater (12); at least one ground station (18) for transmitting a feeder link comprised of a plurality of communication signals to the at least one satellite communication signal repeater; and a plurality of user terminals (13) each receiving one of the communication signals over a user link from the at least one satellite communication signal repeater. The satellite communication system further includes a closed loop power control system (80) having a plurality of inner loops (84), individual ones of which operate to compensate one of the user links for communication signal impairments occurring at least between the user terminal and the at least one satellite communication repeater, and an outer loop (82) which operates to compensate all of the user links for feeder link impairments occurring between the at least one ground station and the at least one satellite communication signal repeater.

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