| 摘要 |
<p>Two different codes are applied to the header and the data field of the ATM cell. The code used for the header is stronger and is a sub-code of the data field code. A third encoding is applied to the data obtained, in a direction perpendicular to the previous encoding, so that one word resulting from the third encoding contains a bit from each word of the two previous encodings. The encoding uses BCH codes from one of the following families: (9n, k), (n, k-1), (n+1, k), (n-s, k-s), (n-s, k-1-s) with integer k, n and s and s k. The data from the first two encoding passes is interlaced before the third encoding.</p> |
