Method and apparatus for reducing interference in a data...

Details Method and apparatus for reducing interference in a data... Method and apparatus for reducing interference in a data...

2005-06-21

2005-06-21

Bocure, Tesfaldet (Department: 2631)

Pulse or digital communications

Equalizers

Automatic

C375S343000, C375S355000

Reexamination Certificate

active

06909742

ABSTRACT:
Compensating for channel response in communications systems. An equalizing system includes a correlation block to calculate a correlation statistic from a received signal. The correlation statistic is used by a microcontroller to predict a channel response that includes a number of expansion coefficients. A steepest decent procedure is applied to the expansion coefficients. The steepest decent procedure may include, for example, a bias, or zeroing expansion coefficients by trial and error to remove ghost peaks. The steepest decent procedure produces a number of optimized expansion coefficients. The optimized expansion coefficients are used to create a number of filter coefficients. The filter coefficients are applied to an equalizer. The equalizer compensates for effects of the channel response to produce an equalized output signal.

REFERENCES:
patent: 3764914 (1973-10-01), Karnaugh
patent: 6246732 (2001-06-01), Kobayashi et al.
patent: 6647078 (2003-11-01), Thomas et al.
patent: 6754340 (2004-06-01), Ding
Simon Haykin,“adaptive filter Theory, foruth edition,” 2002, Prentice Hall, pp203-227.
Shukia, “Channel-estimation-based adaptive DFE for fading multipath radio channels,” IEE Proceeding, vol. 138, No. 6, Dec. 1991, pp 525-543.

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