Digitally controlled transversal equalizer

Details Digitally controlled transversal equalizer Digitally controlled transversal equalizer

1982-09-13

1984-10-02

Griffin, Robert L.

Pulse or digital communications

Repeaters

Testing

333 18, 364724, H03H 736

Patent

active

044752113

ABSTRACT:
An adaptive equalizer performs equalization at IF, demodulates the input signal and then generates the equalization coefficients at baseband from the demodulated data. Coefficient updating can be done on a non-real time basis and coefficients for individual bursts stored in a coefficient memory for retrieval when the same burst occurs in the next frame, thus obtaining a pseudo-continuous equalization for each burst. The error signal is derived from demodulated equalized data and correlated with demodulated unequalized data to generate the correlation coefficients, and individual error signals from each channel can be combined into a single composite error signal for correlation purposes.

REFERENCES:
patent: 3755738 (1973-08-01), Gitlin et al.
patent: 4330861 (1982-05-01), Impallomeni et al.
patent: 4334313 (1982-06-01), Gitlin et al.

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