VITERBI DECODER USING D.S.P PROCESSOR

摘要

a branch matrix operation means for outputting a branch matrix; an addition-comparison-selection means for receiving the branch matrix from the branch matrix operation means and performing an addition-comparison-selection process to output a path matrix and a path determining bit; a path matrix renewal means for searching a state vector having a minimum path matrix by a path matrix renewed in a path time outputted from the addition-comparison-selection means; and a chain back means for receiving a path removing bit and the state vector having the minimum path matrix from the path matrix renewal means, for receiving the path determining bit from the addition-comparison-selection means, for arranging a virtual information bit row to output the arranged bit row to the path matrix renewal means in a path control bit manner or obtain a decoding bit to thereby output the decoding bit to the outside.