Mixed minimum mean square error/zero-forcing FIR filter...

Details Mixed minimum mean square error/zero-forcing FIR filter... Mixed minimum mean square error/zero-forcing FIR filter...

2008-07-23

2011-12-13

Patel, Dhaval (Department: 2611)

Pulse or digital communications

Equalizers

Automatic

C375S229000, C375S230000, C375S231000, C375S233000, C375S234000

Reexamination Certificate

active

08077765

ABSTRACT:
A system and method of adapting a FIR filter with a mixed minimum-mean-square-error/zero-forcing adaptation is disclosed. A channel response module attempts to approximate a noiseless component of the channel response. The output of the channel response module is utilized to adapt a FIR filter module. In some embodiments, a combination of the output of the channel module and the noiseless channel output is utilized to adapt the FIR filter. In some embodiments, a second FIR filter module is utilized to process the noiseless channel output, which is then compared to the target response to generate an error signal, which may be used to adapt both the first and second FIR filter modules.

REFERENCES:
patent: 2003/0095592 (2003-05-01), Bergmans et al.
patent: 2005/0175128 (2005-08-01), Modrie et al.
patent: 2008/0253438 (2008-10-01), Riani et al.
patent: 2009/0034646 (2009-02-01), Feller

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