Equalizers for DVD read channel with d = 2 modulation coding
Srinivasan Gopalaswamy, Roger W. Wood · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 1997
The EFMPlus is the run-length-limited modulation code adopted for the DVD. Enhanced performance can be obtained by using equalizers that exploit the d equals 2 constraint of this code. Two such equalizers are presented and their performance evaluated using modeling and simulations. The use of this equalization strategy avoids the Viterbi detector, and optimal detection is provided by use of only a comparator.