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Viterbi decoder

 

Viterbi decoder

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A viterbi decoder uses the viterbi algorithm for decodig a bitstream that has been
encoding using Forward error correction based on a Convolutional code.

Viterbi decoding was developed by Andrew J. Viterbi and published in the paper "Error Bounds for Convolutional Codes and an Asymptotically Optimum Decoding Algorithm," IEEE Transactions on Information Theory, Volume IT-13, pages 260-269, in April, 1967.

The Viterbi decoding algorithm is used in decoding trellis-coded modulation, the technique used in telephone-line modems to squeeze high spectral efficiency out of 3 kHz-bandwidth analog telephone lines. It is also used in the PSK31 digital mode for amateur radio.

External link

  • [1] – Provides details on Viterbi decoding, as well as a bibliography.

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