Method of and apparatus for noise whitening filtering

Details Method of and apparatus for noise whitening filtering Method of and apparatus for noise whitening filtering

2007-05-01

2007-05-01

Bayard, Emmanuel (Department: 2611)

Pulse or digital communications

Receivers

Interference or noise reduction

C375S350000

Reexamination Certificate

active

10684598

ABSTRACT:
A method of and apparatus for reducing interference in a received signal. A normalized noise correlate is determined using the received signal and a first channel estimate of the received signal. Conditional whitening-filter settings are determined using the normalized noise correlate. A whitening filter is applied to the received signal in accordance with the conditional whitening-filter settings. A synchronization adjustment of an updated received signal is performed. A second channel estimate, which may be of the same span as the first channel estimate, is determined using an updated synchronization position and the updated received signal.

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U.S. Appl. No. 10/685,218.

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