Time domain equalizer and control method therefor

The invention provides a time domain equalizer, and the equalizer is used for eliminating an echo signal in a receiving signal. The receiving signal comprises an original signal and the echo signal. The time domain equalizer includes a time delay amount estimator, an amplitude magnification estimator, and a phase offset estimator. The time delay amount estimator finds out a delay amount which canachieve the maximization of a cost function, wherein the delay amount serves as an estimated delay amount of the echo signal relative to the original signal. The amplitude magnification estimator determines an estimated amplitude magnifying power of the echo signal relative to the original signal according to the estimated delay amount. The phase offset estimator determines an estimated phase offset of the echo signal relative to the original signal according to the estimated delay amount. 本发明提供种时域均衡器，用以消除接收信号中的回波信号。该接收信号包含原始信号以及该回波信号。该时域均衡器包含时间延迟量估计器、振幅放大倍率估计器，以及相位偏移量估计器。该时间延迟量估计器找出能令成本函数被最大化的延迟量，作为该回波信号相对于该原始信号的估计延迟