Hybrid threshold soft decision decoding algorithm

A hybrid threshold soft decision decoding scheme which combines a Chase 2 algorithm with a bit-by-bit decision decoding algorithm is presented. For higher signal-to-noise ratios (SNRs), its behaviour is not inferior to that of the corresponding bit-by-bit decoding algorithm. This scheme can overcome the exponential increase of the test patterns used in the Chase 2 algorithm, as d (the minimum Hamming distance of code) increases