Patent ID: 6542480
Filing Date: 2003-04-01
Classification: H04B

Abstract:
A satellite payload processing system for processing an uplink signal consisting of a plurality of single-channel-per-carrier, frequency division multiple access carriers and having an on-board clock, comprising:a polyphase demultiplexer processor for separating said uplink signal into a time division multiplexed data stream of symbols and presenting said symbols corresponding to each of said plurality of carriers at respective ones of said frequencies in said uplink signal sequentially to an output of said polyphase demultiplexer processor; a phase shift keying demodulator connected to said output of said polyphase demultiplexer processor for demodulating said stream of symbols into corresponding time division multiplexed stream of digital baseband bits; and a rate alignment device for processing said time division multiplexed stream of digital baseband bits to compensate for rate differences between said on-board clock and said symbols corresponding to each of said plurality of carriers received at said satellite, and for demultiplexing said time division multiplexed stream into parallel, rate-aligned channels.