发明名称 AUTOREGRESSIVE SIGNAL PROCESSING FOR REPEATER ECHO CANCELLATION
摘要 A method and apparatus to address multipath interference in a communication system is provided. The method comprises measuring an error signal in a signal path of the repeater, wherein the error signal contains desired communication signals, noise signals, and multipath coupling interference signals, computing a power spectrum of the measured error signal, and estimating a response of the multipath coupling interference by processing the power spectrum of the measured error signal using autoregressive estimation in the frequency domain. The method further comprises computing a plurality of FIR filter coefficients from the estimated response and applying the plurality of filter coefficients to an adjustable filter that generates a cancellation signal used to at least partially mitigate the multipath coupling interference signals.
申请公布号 US2011249708(A1) 申请公布日期 2011.10.13
申请号 US201113081654 申请日期 2011.04.07
申请人 ANDREW LLC 发明人 MACA GREGORY ALLAN
分类号 H04B17/02 主分类号 H04B17/02
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