METHOD FOR DETECTION AND / OR AUTOMATIC CORRECTION OF ERRORS IN A MULTIPLEXED DATA STREAM

摘要

The present invention relates to a method for automatically detecting and / or correcting errors in a multiplexed data stream. The data stream includes a plurality of interleaved data channels arranged cyclically in frames, each data channel having an assigned slot within each frame, in which there is a sample of data presumably belonging to the channel. The flow includes ordinary data samples and glitches, which causes the subsequent regular data samples to be shifted with respect to the intervals. Glitches are identified using a Viterbi algorithm. As states, associated with each sample of data, the algorithm uses the possible offsets (i.e., one interval offset, two intervals, etc.) caused by glitches received up to the same time. associated data sample. Permitted transitions between states include a first transition, representing a reception of an ordinary data sample, and a second transition, representing a reception of a glitch.