公开(公告)号：US20130114651A1

公开(公告)日：2013-05-09

申请号：US13726047

申请日：2012-12-22

申请人： Andrew LLC

发明人： Chris Ranson ,  Van Erick Hanson ,  Thomas Kummetz

IPC分类号： H04B7/15

CPC分类号： H04B7/15 ,  H04B7/15571

摘要： An apparatus for repeating signals includes a receive antenna for receiving input signals, processing circuitry for processing the input signals to form repeated signals, and a transmit antenna for transmitting the repeated signals. The processing circuitry includes an adaptive digital filter configured to generate cancellation signals that are added to the input signals to cancel unwanted feedback signals from the input signals. A frequency shifting circuit adds a frequency shift to the input signals, after the addition of the cancellation signals, to form repeated signals that are frequency shifted from the input signals. A digital signal processor is coupled to the adaptive digital filter for digitally adapting the filter. The digital signal processor utilizes the frequency shift of the transmission signals to adapt the adaptive digital filter.

摘要翻译： 用于重复信号的装置包括用于接收输入信号的接收天线，用于处理输入信号以形成重复信号的处理电路，以及用于发送重复信号的发送天线。 处理电路包括自适应数字滤波器，其被配置为产生被附加到输入信号的消除信号，以从输入信号中消除不需要的反馈信号。 频移电路在增加消除信号之后，向输入信号添加频移，以形成从输入信号频移的重复信号。 数字信号处理器耦合到自适应数字滤波器，用于数字适配滤波器。 数字信号处理器利用传输信号的频移来适应自适应数字滤波器。

公开(公告)号：US08571470B2

公开(公告)日：2013-10-29

申请号：US13726047

申请日：2012-12-22

申请人： Andrew LLC

发明人： Chris Ranson ,  Van Erick Hanson ,  Thomas Kummetz

IPC分类号： H04B7/14

CPC分类号： H04B7/15 ,  H04B7/15571

摘要： An apparatus for repeating signals includes a receive antenna for receiving input signals, processing circuitry for processing the input signals to form repeated signals, and a transmit antenna for transmitting the repeated signals. The processing circuitry includes an adaptive digital filter configured to generate cancellation signals that are added to the input signals to cancel unwanted feedback signals from the input signals. A frequency shifting circuit adds a frequency shift to the input signals, after the addition of the cancellation signals, to form repeated signals that are frequency shifted from the input signals. A digital signal processor is coupled to the adaptive digital filter for digitally adapting the filter. The digital signal processor utilizes the frequency shift of the transmission signals to adapt the adaptive digital filter.