ITE Technical Report
Online ISSN : 2424-1970
Print ISSN : 1342-6893
ISSN-L : 1342-6893
21.76
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Mod2 time-varying MTR code and the performance
Satoru HigashinoHiroyuki InoYoshihide Shimpuku
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CONFERENCE PROCEEDINGS FREE ACCESS

Pages 9-15

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Abstract

A time varying MTR (Maximum Transition Run) code which enhances the minimum distance by controling the timing of PRML detector trellis was introduced. This code can be made in better than 8/9 rate. This method is different from MSN (Matched Spectral Null) code which is restricted in its power spectral density, and the scale of hardware is same as uncoded one because the code doesn't have the states of itself. We have made sure that when the time varying MTR E2PR4 Viterbi detector operated once in two time slot, it needed only 14 states. We confirmed the fundamental performance for magnetic recording and the hardware needed input signal quantized into 5 to 6 bits for the performance of bit error rate 10^<-5> by simulating. We also made sure this performance on magnetic disk apparatus.

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© 1997 The Institute of Image Information and Television Engineers
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