Viterbi decoder bit efficient chainback memory method and decode

Details Viterbi decoder bit efficient chainback memory method and decode Viterbi decoder bit efficient chainback memory method and decode

1991-09-27

1995-11-21

Beausoliel, Jr., Robert W.

Excavating

G06F 1110

Patent

active

054694523

ABSTRACT:
A decoder for decoding trellis coded data in which the received signal is assigned a sector value corresponding to the phase of the signal in accordance with a predetermined signal space sectorization format. A Viterbi decoder is used to reconstruct from the received signal an estimate of a data bit that was coded for transmission. This estimate is re-encoded and provided to a trellis output mapper along with the sector value. The trellis mapper in response to the input re-encoded estimate and sector value provides an estimate of an an uncoded data bit transmitted with the coded data bit.

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