Wideband adaptive array using the chirp transform
    1.
    发明授权
    Wideband adaptive array using the chirp transform 失效
    宽带自适应阵列使用啁啾变换

    公开(公告)号:US4821037A

    公开(公告)日:1989-04-11

    申请号:US905824

    申请日:1986-09-10

    CPC分类号: H01Q3/2629 H03H21/0027

    摘要: An adaptive array processor is disclosed for processing the signals from a main antenna and one or more auxiliary antennas to provide suppression of wideband interference. The outputs from the respective antennas are transformed into the frequency domain by synchronized chirp transformers conducted over a transform block length. The transformed auxiliary antenna signal is weighted by time varying, frequency dependent weights which are adaptively determined. The transformed main antenna and weighted auxiliary antenna signals are then combined. The combined signal is then transformed back to the frequency domain by an inverse chirp transformation.

    摘要翻译: 公开了一种用于处理来自主天线和一个或多个辅助天线的信号以提供对宽带干扰的抑制的自适应阵列处理器。 通过在变换块长度上进行的同步啁啾变压器将各个天线的输出变换成频域。 变换后的辅助天线信号由自适应确定的时变,频率依赖权重加权。 然后组合变换的主天线和加权的辅助天线信号。 然后通过反向啁啾变换将组合信号转换回频域。