ITE Technical Report
Online ISSN : 2424-1970
Print ISSN : 1342-6893
ISSN-L : 1342-6893
21.36
Conference information
A Study on Improvement of Error Rate Performance by Viterbi Detection with Path Feedback
Yoshihiro OkamotoYusuke InaiKohei WakamiyaHidetoshi SaitoHisashi Osawa
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CONFERENCE PROCEEDINGS FREE ACCESS

Pages 27-34

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Abstract

In our PRML systems, we employ a noise whitening matched filter having minimum-phase to avoid emphasizing high frequency noise and coloring noise and combine it with Viterbi detector with path feedback. First, the minimum-phase, noise-whitening matched filter which consists made of a transversal filter and a low-pass filter is described. Then, the error rate performance is obtained by computer simulation, and the performance is compared with that of the combination of a minimum-phase, noise whitening matched filter and fixed delay tree search with decision feedback (FDTS/DF). The results show that Viterbi detector with path feedback can improve the signal-to-noise ratio over that of FDTS/DF.

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© 1997 The Institute of Image Information and Television Engineers
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