Provided are a radar device and an object detection method that can detect the movement direction of an object in a short time, without detecting a change in the position of the object. The radar device comprises: a transmission unit that transmits, to an object, a transmission wave based on a transmission signal; a reception unit that receives a reflected wave created by the reflection of the transmission wave by the object, and generates a reception signal; and an object detection unit that acquires information relating to the object on the basis of the transmission signal and the receptionsignal. The object detection unit calculates, for each of a plurality of detection points within the same object: an azimuth angle [phi] indicating the azimuth of the detection point with respect to the radar device; and a velocity component V([phi]) of the relative velocity A of the object along the azimuth. The object detection unit derives a relational expression for the azimuth angle [phi] andthe velocity component V([phi]), and derives a movement angle [theta] (= [pi]/2-[phi]) indicating the movement direction of the object from the azimuth angle [phi] when V([phi]) = 0.

    本发明提供能够无需检测目标的位置的变化而在短时间内检测出目标的移动方向的雷达装置及目标检测方法。雷达装置具备:发送部,将基于发送信号的发送波向目标发送;接收部,接收发送波由所述目标反射而产生的反射波,并生成接收信号;以及目标检测部,基于发送信号及接收信号来获取与目标有关的信息。目标检测部针对同一目标内的多个检测点的每一个,计算表示检测点相对于该雷达装置的方位的方位角以及目标的相对速度A的沿着所述方位的速度分量,求得方位角与所述速度分量的关系式,根据时的方位角求得表示目标的移动方向的移动角。


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    Title :

    Radar device and object detection method


    Additional title:

    雷达装置及目标检测方法


    Contributors:

    Publication date :

    2020-04-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    G01S RADIO DIRECTION-FINDING , Funkpeilung / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS



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