Radar
    1.
    发明授权
    Radar 失效
    雷达

    公开(公告)号:US06246359B1

    公开(公告)日:2001-06-12

    申请号:US09380065

    申请日:1999-08-25

    IPC分类号: G01S1306

    摘要: A signal processing unit detects the azimuthal direction of a target in accordance with the phase difference between signals received by two receiving antennas. Then, by sequentially switching plural transmitting antennas having mutually different beam directions with a switching device, received signals are obtained using each of the transmitting antennas.

    摘要翻译: 信号处理单元根据由两个接收天线接收的信号之间的相位差来检测目标的方位角方向。 然后,通过利用切换装置顺序切换具有相互不同的波束方向的多个发送天线,使用每个发送天线来获得接收信号。

    Tracking antenna system
    2.
    发明授权
    Tracking antenna system 失效
    跟踪天线系统

    公开(公告)号:US5245348A

    公开(公告)日:1993-09-14

    申请号:US842968

    申请日:1992-02-28

    摘要: An antenna is divided into a plurality of sub-arrays which are arranged parallel to each other on a turntable. At least one of the sub-arrays is laterally divided into sub-array sections. Reception signals from these sub-array sections are compared with each other to detect a phase difference therebetween. This phase difference is utilized to control the beam direction of the antenna such that the antenna can be properly oriented to the satellite at all times.

    摘要翻译: 天线被分成在转台上彼此平行布置的多个子阵列。 子阵列中的至少一个被横向划分成子阵列部分。 将来自这些子阵列部的接收信号进行比较,以检测它们之间的相位差。 该相位差用于控制天线的波束方向,使得天线可以始终适当地定向到卫星。