Combined concatenated coding and nonlinear equalization for magnetic recording channels
Conference Paper
Overview
Overview
abstract
Combined concatenated coding and nonlinear equalization for magnetic recording partial response channels that suffer from nonlinear distortion was studied. The RAM-search/Viterbi-detector (RS-VD) algorithm was extended to a posteriori probability (APP) and soft-output Viterbi algorithm (SOVA) detectors that were used with turbo-coded channels. The performance could be improved if the channel detector (RS-SOVA) and code decoders pass information back and forth to each other in an iterative manner.