Patent ID: 6421528
Filing Date: 2002-07-16
Classification: H04B,Y02D

Abstract:
A system for compensating for communication signal attenuation within at least one localized region of a coverage area of a satellite having a portion of a total communication signal transmit power allocated thereto, the system comprising:a receiver for receiving data indicative of communication signal attenuation within the at least one localized region; a processor in communication with the receiver for calculating a communication signal transmit power compensation adjustment for each of the at least one localized region based on the signal attenuation; a satellite transmission system in communication with the processor for adjusting communication signal transmit power allocated to each of the at least one localized region based on the compensation adjustment calculated by the processor to compensate for the communication signal attenuation, and wherein the satellite transmission system further comprises: a plurality of commandable attenuators for adjusting input power level; a plurality of amplifiers in communication with corresponding ones of the plurality of commandable attenuators, the amplifiers including an anode voltage adjustment to adjust associated operating points; and a plurality of antenna feed elements in communication with corresponding ones of the plurality of amplifiers wherein the plurality of feed elements transmits a corresponding plurality of beams with a single feed element per beam and wherein the processor calculates the signal transmit power compensation adjustment to control the commandable attenuators and the anode voltage adjustment for each of the amplifiers.