| 摘要 |
A system comprising a plurality of channel detectors (CDs) receiving quantized and equalized ISI channel information indicative of an LDPC codeword. The channel information is split for input to the CDs, such that each CD receives channel information indicative of a portion of the LDPC codeword. Each CD outputs at least first soft information for bits of the codeword portion of that CD. The first soft information for the codeword is received by an LDPC decoder, which uses the soft information to produce a user bit sequence and second soft information about the user bit sequence. The system can cause the second soft information to be input to the plurality of CDs, such that iterative processing can occur for the codeword. Other aspects include a system providing clocking of one or more CDs at a frequency selected to balance codeword throughput of the CDs with codeword throughput of an LDPC decoder clocked by a second clock, and methods according to each system. |
