Adaptive filtering for canceling distortion in radio frequency signals
    1.
    发明授权
    Adaptive filtering for canceling distortion in radio frequency signals 有权
    用于消除射频信号失真的自适应滤波

    公开(公告)号:US08879663B1

    公开(公告)日:2014-11-04

    申请号:US13533012

    申请日:2012-06-26

    IPC分类号: H04B7/005 H03F1/32 H04B15/00

    摘要: Adaptive filtering is used to substantially cancel distortion in radio frequency (RF) signals. Such adaptive filtering can be used in an RF transmitting module to pre-compensate an RF signal with compensation (inverse) distortion to cancel inherent transmission path distortion from the RF signal. Adaptive filtering can also be used in a multi-carrier RF receiving module to cancel from a given carrier signal distortion due to cross talk from adjacent carrier signals. Adaptive filtering in an RF transceiver can be used to cancel from a received RF signal distortion arising from leakage of a transmit signal into the receive path.

    摘要翻译: 自适应滤波用于基本上消除射频(RF)信号中的失真。 这种自适应滤波可以用在RF发射模块中,以用补偿(反向)失真对RF信号进行预补偿,以消除来自RF信号的固有传输路径失真。 自适应滤波也可以用在多载波RF接收模块中,以从给定的载波信号中消除由于相邻载波信号的串扰引起的失真。 RF收发器中的自适应滤波可用于从发射信号泄漏到接收路径中的接收到的RF信号失真中消除。