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NASA NTRS ยท 19850000311

Fast VLSI Viterbi Decoder

Abstract

Fast Viterbi decoder with fully parallel, pipeline architecture implemented on two VLSI NMOS chips. Decoder used with constraint-length-7, rate-1/2, convolutional error-correcting code widely used by NASA for deepspace telemetry data. With this (7,1/2) code, bit stream contains 2 bits per original data bit, and information about 1 data bit distributed over 7 pairs of bits. Design principles of decoder also applicable to Viterbi codes of other lengths and rates.

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BibTeXRIS

Wang, C. C.. 1986-01-01. Fast VLSI Viterbi Decoder. https://ntrs.nasa.gov/citations/19850000311

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