ITE Technical Report
Online ISSN : 2424-1970
Print ISSN : 1342-6893
ISSN-L : 1342-6893
26.1
Session ID : MMS2002-4
Conference information
Performance improvement of PRML channel using AR model
Yoshihiro OKAMOTO, Noriyuki MASUNARI, Hirofumi YAMAMOTO, Hisashi OSAWA, Hidetoshi SAITO, Hiroaki MURAOKA, Yoshihisa NAKAMURA
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Keywords: perpendicular magnetic recording, AR channel model, PRML system, Jitter-like medium noise
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Abstract

BER performance improvement of PRML system in perpendicular magnetic recording is studied. The performance of Viterbi detector is improved by applying an AR model to the estimation of input sequence. The required SNR's to achieve a BER of 10^<-6> are obtained by computer simulation and they are compared with those of conventional system. The results show that PRML system with Viterbi detector using an AR channel model provides a good performance.

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© 2002 The Institute of Image Information and Television Engineers
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