Decoding of non-binary codes with symbol re-grouping

摘要

The present invention is related to systems and methods for applying a data decode algorithm to different rotations or modifications of a decoder input as part of data processing. If a first decoding fails to converge, then the decoder input is modified and a second decoding is performed. For both the results of the first and second decoding, the number of checks that are not satisfied is determined. The final decoding result is selected based on the number of unsatisifed checks. The underlying error correction codes may be LDPC codes or Reed-Solomon codes.