Error correcting code decoder

Details Error correcting code decoder Error correcting code decoder

H - Electricity

03

M

354/68

H03M 13/05 (2006.01)

Patent

CA 1184305

ERROR CORRECTING CODE DECODER ABSTRACT OF THE DISCLOSURE A method and apparatus which can significantly reduce the matched filter requirements in decoding cyclic block codes, and is particularly advantageous for decoding maximal length block codes, and other cyclic block codes in which the number of codewords is ? 2k where k is the number of data bits encoded into each codeword. The signal containing the codeword is concatenated with itself, then the concatenated signal is applied to a matched filter to provide a peaking signal at some point in time as the concatenated signal is passed through the matched filter. The position of the peaking signal relative to a predetermined instant of time is sensed whereby the identity of the codeword (and thus data) can be determined.

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