Soft decision decoding with channel equalization

Details Soft decision decoding with channel equalization Soft decision decoding with channel equalization

1989-10-13

1993-12-14

Kuntz, Curtis

Pulse or digital communications

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375 96, 371 43, 36472411, H04L 100

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active

052710424

ABSTRACT:
In a communications network having time-dispersed signals, there is provided a mechanism for soft decision decoding. It comprises: radio reception of a time-dispersed signal, at least partly equalizing those time-dispersal effects, recovering information contained in the signal, multiplying with that recovered information the absolute value of that at-least-partly-equalized signal (scaled by a number derived from channel conditions over a time during which at least part of the information to be recovered is distributed), and error-correcting the multiplied information by a Viterbi algorithm channel decoding scheme of error correction. Accordingly, soft decision information is generated from within the equalization process itself.

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