Invention Grant
US07774687B2 Method and system for LDPC code erasure decoding 有权
LDPC码擦除解码的方法和系统

Method and system for LDPC code erasure decoding
Abstract:
The present invention discloses a method for LDPC code erasure decoding, including: generating a first code word through setting a value as a value in Galois field having two elements GF(2) at each of erasure locations in a code word; generating a second code word through setting the value as an inverse value of the value in GF(2) at each of the erasure locations in the code word; conducting a MLD error correcting operation for the first code word and the second code word to get a first result of hard decoding and a second result of hard decoding respectively; determining a result of erasure decoding according to the first result of hard decoding and the second result of hard decoding. Thus the present invention allows LDPC code erasure decoding aimed at the BEC, and increases the error correcting capability for BED signal transmitted data.
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