Path-oriented decoder for signal-dependent noise

Pulse or digital communications – Receivers – Particular pulse demodulator or detector

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375262, 714795, H04L 2706, H04L 2302

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active

061513709

ABSTRACT:
A path-oriented approach is provided to determine surviving paths in a decoder. The paths that are retained as the surviving paths are some number, M, of the paths which have the smallest path metrics, even if two or more of those paths come into a given state. This approach provides significantly improved performance in at least those applications in which branch metrics are a function of the surviving path from which the branch emanates.

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