Systems and methods for using a non-binary soft output viterbi algorithm

摘要

Systems and methods are provided for generating a likelihood value. A detector identifies a winning path through a trellis and a plurality of losing paths through the trellis and computes path metric differences within the trellis based on the winning path and at least some of the plurality of losing paths. The detector calculates a pair of error metrics based on the path metric differences and determines the likelihood value based on a difference between the pair of error metrics.