Uplink demodulator scheme for a processing satellite

Details Uplink demodulator scheme for a processing satellite Uplink demodulator scheme for a processing satellite

H - Electricity

04

J

H04J 1/20 (2006.01) H04B 7/185 (2006.01) H04L 1/00 (2006.01) H04L 27/22 (2006.01)

Patent

CA 2317178

An uplink demodulator system (44) for use in a processing satellite (12) in a satellite based communications system (10) is provided with a first multiplexer (62), a second multiplexer (82); a multichannel preamble processor (66), and a multichannel phase tracker (68). The first multiplexer (62) is operable to receive channelized data from a plurality of channelization modes at a plurality of inputs and operable to route the channelized data to a first output. The multichannel preamble processor (66) is operable to determine a phase estimate for each channel of the channelized data. The multichannel phase tracker (68) is operable to receive the phase estimates from the multichannel preamble processor (66) and operable to track a phase for each channel of said channelized data to phase align each channel of said channelized data to corresponding uplink signals. The second multiplexer (82) is operable to multiplex and route heavy encoded channelized data and light encoded channelized data to a second output where the multiplex channelized data is phase aligned with the corresponding uplink signals.

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