Viterbi algorithm

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Viterbi algorithm

[vi¦ter·bē ′al·gə‚rith·əm]
(communications)
A decoding procedure for convolutional codes that uses the maximum-likelihood method.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

Viterbi decoder

A decoding algorithm developed in the late 1960s by Andrew Viterbi that is used to decode a particular convolutional code. Viterbi decoders have been the most effective way to decode wireless voice communications in satellite and cellphone transmissions. Viterbi outputs a 0 or a 1 based on its estimate of the input bit. See CDMA, convolutional code and turbo codes.


Using the Viterbi Decoder
In the CDMA technology, the Viterbi decoder in the cellphone is used to correct the errors in the convolutional code that was generated by the base station. See CDMA.
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References in periodicals archive ?
The modem employs QAM modulation, Viterbi coding scheme, and FSK modulations to communicate over a variety of transmission lines.