QAM demodulator with distortion compensation

Details QAM demodulator with distortion compensation QAM demodulator with distortion compensation

1985-12-04

1986-12-23

Laroche, Eugene R.

Demodulators

Amplitude modulation demodulator

Having specific distortion, noise or other interference...

375 39, H03D 318

Patent

active

046314881

ABSTRACT:
A demodulator for demodulating a QAM signal which is usable in combination with an adaptive transversal equalizer. Controls over the demodulator and the equalizer are each converged to an optimum point so that the sampling points of two analog-to-digital converters of the demodulator are optimally controlled. For a limited occupied bandwidth of a carrier passband, a large amount of data may be transmitted with distortions due to delay and attenuation inherent in a transmission path compensated for.

REFERENCES:
patent: 4255713 (1981-03-01), Yoshida

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