A ldpc error correction coding method based on flash memory error interval
An error correction coding and error technology, which is applied in the field of LDPC error correction coding based on the error interval of flash memory, achieves the effect of improving error correction ability and algorithm execution efficiency, improving error correction ability, and overcoming error accompanying information propagation
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[0037] The method of the present invention is divided into the following three steps: the first step is to calculate the key factor q according to the current error rate of the solid-state hard disk channel, thereby obtaining an accurate and specific error interval; the second step is to use the error interval to locate possible error information bits ; The third step is to flip the located information bits according to the combined algorithm rules.
[0038] The specific implementation process is as follows:
[0039] Preparatory steps: Pass the k bits of the original information through the generator matrix G to generate an n-bit codeword containing m-bit redundant information, and store it in the flash memory, where n=m+k satisfies the relationship h mn It is a check matrix, which is used to check whether the read information is correct, and the matrix G is generated kn is a matrix containing only 0 or 1 elements, which is used to add redundant information to the original ...
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