Effects of signal-dependant errors on the performance of switched-current Viterbi decoders

A. Demosthenous, J. Taylor

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

Analog current-mode circuits including switched-current (SI) methods can he employed beneficially to implement high-speed, low-power Viterbi decoders for convolutional codes. Unfortunately, signal-dependent errors due to charge injection tend to limit the application of these methods to relatively small constraint-length decoders. This paper presents a technique for reducing the effects of charge injection on system performance. As a result, the use of SI techniques can be extended to the realization of larger Viterbi decoders, including the type conventionally employed in satellite communications
Original languageEnglish
Pages (from-to)1225-1228
Number of pages4
JournalIEEE Transactions on Circuits and Systems. Part I: Fundamental Theory and Applications
Volume48
Issue number10
DOIs
Publication statusPublished - 7 Aug 2002

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