Patent ID: 7542716
Filing Date: 2009-06-02
Classification: H04B

Abstract:
1. A digital payload for processing a sub-band spectrum received on an uplink beam at a communications satellite, the digital payload comprising: a digital channelizer configured to divide the sub-band spectrum into a plurality of frequency slices; a digital switch matrix configured to route each of the plurality of frequency slices to at least one of a plurality of receiving ports; a digital combiner configured to communicate with the receiving ports to receive the plurality of frequency slices and to re-assemble the plurality of frequency slices to thereby form a plurality of output sub-bands for transmission on an output beam of the communications satellite; and a digital regeneration module configured to demodulate each of the plurality of frequency slices to extract a digital bitstream therefrom, to digitally process the bitstream, and to remodulate the bitstream after processing, wherein the digital regeneration module is further configured to digitally process the bitstream by performing cryptographic manipulation of the bitstream.