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53 条记录 (耗时 0.021 秒)

    Multi-channel radar apparatus
    51.
    发明授权
    Multi-channel radar apparatus 失效
    多声道雷达装置

    公开(公告)号：US06522286B1

    公开(公告)日：2003-02-18

    申请号：US09549019

    申请日：2000-04-14

    申请人： Jun Ashihara

    发明人： Jun Ashihara

    IPC分类号： G01S1393

    CPC分类号： G01S13/003 ,  G01S13/34 ,  G01S13/87 ,  G01S13/931 ,  G01S2013/9375

    摘要： A multi-channel radar apparatuses optimizes the number of channels used for detecting a body in terms of position detection precision and processing time reduction. The multi-channel apparatus detects the position of the body that produces reflecting waves by calculating, for example, the center of gravity using only the received signals of monostatic channels (B1, B3, and B5) when the level of the received signals is high and using the received signals of the monostatic channels (B1, B3, and B5), as well as the received signals of bistatic channels (B2 and B4) when the level of the received signals is low.

    摘要翻译： 多通道雷达装置根据位置检测精度和处理时间缩短优化了用于检测身体的通道数量。 多通道装置通过在接收信号的电平为高时仅使用单稳态信道（B1，B3，和B5）的接收信号计算例如重心来检测产生反射波的主体的位置 并且当接收信号的电平低时，使用单声道（B1，B3和B5）的接收信号以及双基准信道（B2和B4）的接收信号。

    Radar apparatus
    52.
    发明授权
    Radar apparatus 失效
    雷达装置

    公开(公告)号：US06348889B1

    公开(公告)日：2002-02-19

    申请号：US09632460

    申请日：2000-08-04

    申请人： Jun Ashihara ,  Kiichirou Sawamoto

    发明人： Jun Ashihara ,  Kiichirou Sawamoto

    IPC分类号： G01S1393

    CPC分类号： G01S13/931 ,  G01S7/4004 ,  G01S7/4056 ,  G01S7/497 ,  G01S17/936 ,  G01S2007/4039 ,  G01S2007/4047 ,  G01S2007/4091 ,  G01S2013/9325 ,  G01S2013/9353

    摘要： A vehicular radar apparatus comprising a radar beam transmission device and a reception device, and a processing unit for detecting the position of a target object from transmission signals and reception signals. The processing unit has a preceding vehicle judgment circuit for judging if a vehicle travelling in front of a subject vehicle in the same direction is the same vehicle as previously detected or not, and a signal strength comparing device for comparing the signal strength of a current reception signal reflected from the preceding vehicle, with a signal strength of a reception signal reflected from the preceding vehicle a predetermined comparison reference time prior, to thereby calculate a change amount in signal strength. When the change amount calculated by the signal strength comparing device drops beyond a previously set threshold value and it is judged by the preceding vehicle judgment device that the preceding vehicle is the same vehicle, it is judged that the detection sensitivity of the radar apparatus has dropped.

    摘要翻译： 一种包括雷达波束传输装置和接收装置的车辆雷达装置，以及用于从发射信号和接收信号中检测目标物体的位置的处理单元。 处理单元具有前一车辆判断电路，用于判断在同一方向上在本车辆前方行驶的车辆是否与先前检测到的车辆相同的车辆;以及信号强度比较装置，用于比较当前接收的信号强度 从前方车辆反射的信号，其中从前方车辆反射的接收信号的信号强度为预定比较基准时间之前，从而计算出信号强度的变化量。 当由信号强度比较装置计算的变化量下降超过预先设定的阈值并且由前方车辆判断装置判断前方车辆是相同的车辆时，判断为雷达装置的检测灵敏度已经下降 。