Dekoder und zugehöriges Verfahren

摘要

The decoder has a probability circuit (432) which generates branch metrics using bit-wise probabilities representing frame to frame correlation relationships. The branch metrics pass to a trellis decoder (434) which outputs decoded data bits as a function of the bit-wise probabilities for at least predetermined bit positions. The decoder uses squared Euclidean distance circuitry in the branch metric generator. Communication can be in computers, radio, radio/cellular/cordless or landline telephone while the transmission medium can be twisted wire, coaxial cable or optical fibre.