Digital signal error reduction apparatus

Details Digital signal error reduction apparatus Digital signal error reduction apparatus

1995-09-06

1999-06-22

Chan, Jason

Pulse or digital communications

Equalizers

Automatic

375350, 3647242, 371 377, H03H 730, H03H 740, H03K 5159

Patent

active

059149833

ABSTRACT:
A digital signal error reduction apparatus of the present invention tracks and reduces both quickly changing errors and static errors in a digital signal which are caused by time variant multipath distortion, co-channel interference, and other transmission path interferences, including nonlinear distortion. A transversal filter is implemented for filtering the digital signal. A error detection device is implemented for calculating an error of the digital signal. A coefficient engine device is used for receiving the digital signal and the error, for extracting the error, and for updating a tap coefficient for the transversal filter so that the error is minimal.

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Giorgio Picchi and Giancarlo Prati, Blind Equalization and Carrier Recovery Using a "Stop-and-Go" Decision-Directed Algorithm, Sep., 1987, 11 Pages.

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