A method of improving the performance of a viterbi decoder and a viterbi decoder

摘要

A method of improving the performance of a viterbi decoder, characterized by the cases of a decision on the total quality of a data packet received by the checking of the unfolding of the viterbi decoder process as a result of the first data-carrying symbols, wherein the survivor path in a memory array consisting of an m × n matrix, consisting of single bit cells, is stored, where m is the number of the possible states, which can be assumed by the respective convolution encoder, and n is the feedback tracking value, characterized in that a partial sum or the total sum σ of bits by means of each column n of the matrix is calculated, and the sum σ in a 1 × n row vector unsigned integer numbers is stored, and that the sum σ, which in the row vector is stored, is compared with a predetermined threshold, and over the value of the decoded bits in a function of the result of this comparison, a decision is made.