Title :
Simplified EPR4 detection
Author :
Friedman, A.A. ; Wolf, Jack K.
Author_Institution :
Eastman Kodak Co., San Diego, CA, USA
fDate :
1/1/1998 12:00:00 AM
Abstract :
A new detector implementation for the extended class 4 partial response channel is presented. This implementation uses two, interleaved ternary 1-D detectors followed by a post-processor to detect the recorded data. The post-processor consists of a sequence check followed by a determination of the N most-likely paths through the two 1-D detectors, if necessary. This system is shown via simulation to perform as well as the standard EPRI maximum likelihood detector
Keywords :
digital magnetic recording; error correction codes; error detection codes; interleaved codes; magnetic recording noise; partial response channels; signal detection; trellis codes; EPR4 detection; detector implementation; error correction; error detection; error probability; extended class 4 partial response channel; interleaved ternary 1-D detectors; post-processor; recorded data detection; sequence check; simulation; Additive noise; Detectors; Heart; Interleaved codes; Lifting equipment; Magnetic recording; Partial response channels; Polynomials; Signal to noise ratio; Viterbi algorithm;
Journal_Title :
Magnetics, IEEE Transactions on
