ADAPTIVE EQUALIZER FOR DIGITAL DATA SYSTEMS

摘要

The automatic time-domain equalizer is modified to improve its signal-to-noise and impulse-response dispersal performance by supplementing the basic prior art equalizer with a final equalizer whose tap attenuators are controlled by correlations of the output of the basic equalizer with a distortion error signal. The reference input to the final equalizer is the appropriately delayed signal to be equalized. Two cascade equalization sections substantially eliminate from the final output the noise and echo components that are normally generated in the basic equalizer when used alone.