Whitening of data-dependent, non-stationary noise in an...

Details Whitening of data-dependent, non-stationary noise in an... Whitening of data-dependent, non-stationary noise in an...

2004-10-28

2008-12-30

Deppe, Betsy L (Department: 2611)

Pulse or digital communications

Receivers

Particular pulse demodulator or detector

C375S346000, C375S350000, C714S795000

Reexamination Certificate

active

07471746

ABSTRACT:
A decoder includes cascaded lattice filters that receive encoded data and include adaptive inputs and output taps. A tap control couples a selected output tap to a viterbi input as a function of a viterbi output. A noise adaptation circuit provides adjustment to the adaptive inputs as a function of the viterbi output to whiten non-stationary noise that is received with the encoded data.

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“The Viterbi Algorithm and Markov Noise Memory,” IEEE Transactions on Information Theory, vol. 46, No. 1, Jan. 2000.

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