| 摘要 |
Method and apparatus (30) for decoding block-coded data which has been transmitted by means of differential modulation. The method first attempts to decode all codewords using an error correcting code (100), and if at least one codeword is still not decoded, uses a correctly decoded codeword to locate a possibly erroneous code symbol in the at least one codeword, alters the possibly erroneous code symbol (120), and again attempts to decode the at least one codeword (130). The invention recognizes that errors in such data typically occur in pairs, and utilizes this property to improve the decoding process. |
