| 摘要 |
PROBLEM TO BE SOLVED: To provide a decoding method and apparatus comprising processing iterations. SOLUTION: In each processing iteration, there is a first Max-Log-MAP decoding operation (6') giving rise to a systematic error due to the Max-Log approximation, and a first weighting operation to weight extrinsic information from the first decoding operation to be applied as a prior information to the second Max-Log-MAP decoding operation. This is followed by a second Max-Log-MAP decoding operation (4'), also giving rise to a systematic error due to the Max-Log approximation, and a second weighting operation to weight extrinsic information from the second decoding to be applied as a prior information to the first Max-Log-MAP decoding of the next iteration. The weights are applied to compensate for the systematic error due to the Max-Log approximation made in the last Max-Log-MAP decoding operation. COPYRIGHT: (C)2005,JPO&NCIPI
|
