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1. 发明授权

US08364076B2 Apparatus and method of feedback cancellation for radio signal 失效
标题翻译：无线电信号反馈消除的装置和方法
公开(公告)号：US08364076B2
公开(公告)日：2013-01-29
申请号：US12884805
申请日：2010-09-17
申请人： Ho-Min Eum , Heung-Mook Kim , Hyoung-Nam Kim , Yong-Gu Jo
发明人： Ho-Min Eum , Heung-Mook Kim , Hyoung-Nam Kim , Yong-Gu Jo
IPC分类号： H04B7/14
CPC分类号： H04B1/525 , H04B7/15585
摘要： A feedback signal cancellation apparatus includes a first RF receiver configured to down-convert a received RF signal to a predetermined frequency band, a subtractor configured to subtract a replica of a feedback signal from the down-converted signal, a transmission signal generator configured to generate a repeater output signal using a feedback cancelled signal, a RF transmitter configured to transmit the repeater output signal, a second RF receiver configured to down-convert a RF signal outputted from the RF transmitter to a predetermined frequency band, a reference signal generator configured to receive the RF signal and generate a reference signal having no DC pilot, and a replica generator configured to generate a filter coefficient using correlation between the feedback cancelled signal and the reference signal and to generate a replica of the feedback signal using the generated filter coefficient and the down-converted signal of the second RF receiver.
摘要翻译：反馈信号消除装置包括被配置为将接收的RF信号下变频到预定频带的第一RF接收器，被配置为从下变频信号中减去反馈信号的副本的减法器，被配置为产生使用反馈消除信号的中继器输出信号，被配置为发送中继器输出信号的RF发射机，被配置为将从RF发射机输出的RF信号下变频到预定频带的第二RF接收机;参考信号发生器，被配置为接收RF信号并产生不具有直流导频的参考信号，以及复制发生器，被配置为使用反馈消除信号和参考信号之间的相关来产生滤波器系数，并使用所生成的滤波器系数产生反馈信号的副本，第二RF接收机的下变频信号。

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