Decision feedback equalizer including forward part whose signal

Details Decision feedback equalizer including forward part whose signal Decision feedback equalizer including forward part whose signal

1990-11-19

1992-06-02

Chin, Stephen

Pulse or digital communications

Repeaters

Testing

333 18, 3647242, H04B 308, H03H 730

Patent

active

051194015

ABSTRACT:
A center tap of a transversal filter, which forms part of a forward equalizer, is shifted by at least one symbol interval. An error signal is generated using a decision output and tap outputs of the forward and backward equalizers. An impulse response estimation circuit is provided to receive the decision output of the predetermined tap signals of the forward equalizer. The forward equalizer is controlled in accordance with the channel response to effectively achieve adaptive equalization.

REFERENCES:
patent: 3974449 (1976-08-01), Falconer
patent: 4025719 (1977-05-01), Nussbaumer
patent: 4520489 (1985-05-01), Hogge, Jr.
patent: 4539690 (1985-09-01), Speidel
patent: 4985902 (1991-01-01), Gurcan

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