KR950026276A - Equalizer with shorter convergence time due to parallel processing of taps - Google Patents

Abstract

An equalization filter unit for correcting the distortion signal received using the filter coefficient according to the present invention and outputting an equalized filtered signal; The convergence time is shortened by parallel processing of taps required for equalization filtering, having an error calculating section for detecting a signal and a coefficient updating section for outputting a filter coefficient updated by a channel error provided from the error calculating section. The equalizer includes a plurality of first equalization filter means for equalizing and filtering the input distortion signal by using the first filter coefficient, wherein the equalization filter unit has a predetermined number of taps, and the distortion signal and the filter coefficient for a predetermined period. A distortion input having a plurality of delay means for delaying and a predetermined number of taps, and delayed for a predetermined period by said delay means A plurality of second equalization filter means for equalizing and filtering the signal using a second filter coefficient provided after the signal is delayed by the delay means for a predetermined period, and the equalized filtered signal input from the first and second equalization filter means And a plurality of first adders for adding them. Therefore, the equalizer can shorten the convergence time by parallelizing the taps required for equalization filtering.

Description

Equalizer with shorter convergence time due to parallel processing of taps

Since this is an open matter, no full text was included.

2 is a block diagram showing an equalization filter part of a conventional equalizer;

3 is a block diagram of an equalizer according to the invention.

Claims (2)

An equalization filter unit 300 for outputting an equalized filtered signal by correcting an input distortion signal using a filter coefficient; An error calculator 350 that detects a channel error between the distortion signal and the original signal by receiving the equalized filtered signal provided from the equalization filter unit 300; and a channel error provided from the error calculator 350. The equalizer having a coefficient update unit 400 for outputting the first and second filter coefficients updated by means of which the convergence time is shortened by parallel processing of taps required for equalization filtering is the equalization filter unit 300. A plurality of first equalizing filter means (30, 32, 34, 36) for equalizing and filtering the input distortion signal using the first filter coefficient, and having a predetermined number of taps. A plurality of delay means (38, 39) and a predetermined number of taps for delaying for a predetermined period of time, and the delayed signal input after being delayed for a predetermined period by the delay means for the predetermined period Provided after the A plurality of second equalization filter means for equalizing filtering using a second filter coefficient, the first and second equalizing filter means 31, 33, 35, 37, and equalization input from the first and second equalizing filter means A plurality of first adders (301, 302, 303, 304) for adding the filtered signals; And a plurality of second adders (305, 306) for adding signals provided from said first adders (301, 302, 303, 304). The method of claim 1, wherein the coefficient updater 400 receives the channel error provided from the error calculator 350 and the delay signals provided from the delay means 38, 39 to output the first filter coefficients. First coefficient updating means for performing; Equalization, characterized in that it comprises a second coefficient updating means for receiving the channel error provided from the error calculator 350 and the delay signal provided from the delay means (38, 39) and outputs a second filter coefficient group. ※ Note: The disclosure is based on the initial application.