Maximum likelihood diversity receiver

Abstract From the Canadian patent

Maximum Likelihood Diversity Receiver, Abstract of the Disclosure A communication system utilizing a plurality of receiving antenna which receive digital signals and process all of the received signals in the same trellis type decoder. Hamming weights are applied to each of the signals in accordance with the Viterbi algorithm with only the minimum Hamming weight for any one state transition path between any two levels in the trellis being retained. At the intersection of any two paths in the trellis the path with the minimum Hamming weight is retained and the other path is discarded.