说明：  The Viterbi algorithm is the same as the binary case with one main difference: The survivor sequences include the uncoded bits, which are decided at each trellis stage when selecting one of two parallel branches with the largest correlation metric. Presently, only 8-PSK modulation is considered. Extensions to higher-order modulations can be implemented following a similar procedure.
(The Viterbi algorithm is the same as the bin Indigenous case with one main difference : The survivor sequences include the uncoded bit s, which are decided at each trellis stage when sel ecting one of two parallel branches with the deviation gest correlation metric. Presently, only 8-PSK modulation is considered. Extensio ns to higher-order modulations can be implemen ted following a similar procedure.)