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    Apparatus for measuring physical quantities related to relative movement between two objects
    1.
    发明公开
    Apparatus for measuring physical quantities related to relative movement between two objects 失效
    一种用于在两个物体之间的测量物理值相对于所述相对运动的设备。

    公开(公告)号：EP0679906A1

    公开(公告)日：1995-11-02

    申请号：EP94400875.4

    申请日：1994-04-22

    申请人： MITSUBISHI PRECISION CO., LTD.

    发明人： Hidaka, Keiki, c/o Mitsubishi Precision ,  Suzuki, Yoichiro, c/o Mitsubishi Precision

    IPC分类号： G01S13/32 ,  G01S13/60 ,  G01S13/87 ,  G01S13/58 ,  G01S13/44

    CPC分类号： G01S13/4445 ,  G01S13/325 ,  G01S13/586 ,  G01S13/605 ,  G01S13/87

    摘要： A measuring apparatus is provided in one of two objects moving relatively to each other. The apparatus includes a circuit (18, 20) for effecting a direct spread modulation with respect to a transmission carrier signal (f₀) using modulation codes (MA1, MB1); an antenna unit (22, 24) for transmitting the modulated carrier signal toward the other of the two objects and for receiving a reflection wave therefrom; a circuit (30, 32) for demodulating the received reflection wave signal using the transmission carrier signal; a circuit (42, 44) for making correlation between the demodulated output signal (IF1, IF2) and a signal (MA2, MB2) having the same code as that of the modulation code and having a phase delayed by a predetermined time; a unit (46, 48) for extracting a Doppler frequency component contained in a signal which has been propagated through a propagation path existing in a specified distance range; and a circuit (60) for properly processing the extracted Doppler frequency component. By the constitution, it is possible to precisely measure a speed and/or direction angle of one object relative to the other of the two objects, without being subject to an influence by a reflection in the close neighborhood, or an influence by interference of a transmission signal or interference signal in a receiving channel of the apparatus.

    摘要翻译： 的测量装置在两个对象中的一个相对移动海誓山盟提供。 该设备包括用于使用调制码（MA1，MB1）送达的直接扩展调制相对于一个传输载波信号（F 0）的电路（18，20）; 到天线单元（22，24），用于发送向其他两个对象的调制载波信号，并用于接收来自反射波存在; 用于解调使用传输的载波信号的信号接收到的反射波的电路（30，32）; 用于解调输出信号（IF1，IF2）与具有象的调制码相同的代码，并且具有一个预定的时间延迟的相位的信号（MA2，MB2）之间进行的相关性的电路（42，44）; 用于提取包含在已经通过存在于指定的距离范围内的传播路径传播的信号的多普勒频率成分的单元（46，48）; 和用于适当地处理所述多普勒频率提取的分量的电路（60）。 通过该构成，也能够精确地测量的速度和/或一个对象相对于另一两个对象，的方向角度而不受由反射在近邻域影响，或通过的干扰影响 在该装置的接收信道的发送信号或干扰信号。