Matched spectral null codes for partial response channels

Details Matched spectral null codes for partial response channels Matched spectral null codes for partial response channels

1994-11-18

1997-07-08

Elmore, Reba I.

Excavating

G06F 1110, H03M 1312

Patent

active

056469500

ABSTRACT:
A method is provided for encoding and decoding binary data, using a non-quasicatastrophic and phase invariant matched spectral null code for a partial response channel. The method is particularly suited for partial response systems wherein the order of the higher order null in the transfer function of the partial response channel is .gtoreq.1, resulting in signal-to-noise (SNR) gain at the channel output. In a preferred form, the method is used to develop a rate 3/10 Nyquist-null trellis code.

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0018-9448/91/0500-0818 1991 IEEE--Razmik Karabed & Paul Siegel Matched Spectral-Null Codes for Partial-Response Channels.

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