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    • 11. 发明申请
    • Radar Target Detecting Method, and Appartus Using the Target Detecting Method
    • 雷达目标检测方法和使用目标检测方法的Appartus
    • US20090231182A1
    • 2009-09-17
    • US12365365
    • 2009-02-04
    • Tetsu NishimuraToru Ishii
    • Tetsu NishimuraToru Ishii
    • G01S13/00
    • G01S3/48G01S13/34G01S13/42G01S13/931G01S2013/9375
    • A radar apparatus includes a transmitting antenna and a receiving antenna that has a plurality of antenna elements, and switches the plurality of antenna elements in synchronization with a modulation period to acquire receiving signals. At this time, the antenna elements are switched in accordance with a combination of a first sub-phase and a second sub-phase in which the antenna elements are sequentially switched in opposite directions to thereby acquire the receiving signals. The radar apparatus calculates an azimuth sine value sin θ1 from the acquired receiving signals of the first sub-phase and calculates an azimuth sine value sin θ2 from the receiving signals of the second sub-phase. Next, the radar apparatus calculates an actual azimuth θ through an averaging process of these azimuth sine values sin ƒ1 and sin θ2.
    • 雷达装置包括具有多个天线元件的发送天线和接收天线,并且与调制周期同步地切换多个天线元件以获取接收信号。 此时,根据第一子相和第二子相的组合来切换天线元件,其中天线元件沿相反的方向顺序切换,从而获得接收信号。 雷达装置根据所获取的第一子相的接收信号计算方位正弦值sinθ1,并根据第二子相的接收信号计算方位正弦值sinθ2。 接下来,雷达装置通过这些方位正弦值sin f1和sinθ2的平均处理来计算实际方位角θ。
    • 15. 发明申请
    • Radar
    • 雷达
    • US20050174282A1
    • 2005-08-11
    • US10516924
    • 2003-05-22
    • Motoi NakanishiToru IshiiTetsu Nishimura
    • Motoi NakanishiToru IshiiTetsu Nishimura
    • G01S7/02G01S7/35G01S13/34G01S13/42G01S13/58G01S13/93
    • G01S7/354G01S13/345G01S13/42G01S13/584G01S13/931G01S2007/356G01S2013/9353
    • An FM-CW radar detects at least one of the relative distance and the relative speed of a predetermined object based on the frequencies of projection portions observed in the frequency spectrums of beat signals in an ascending-modulation section and a descending-modulation section, where the projection portions are generated by one and the same object. The radar determines the moving speed of a predetermined moving object such as a vehicle or the like having the radar mounted thereon, and the frequency difference between the projection portions observed in the frequency spectrums of the beat signals in the ascending-modulation section and the descending-modulation section is inversely calculated, where the frequency difference corresponds to the stationary object, and a predetermined pair corresponding to the frequency difference is extracted on a priority basis.
    • FM-CW雷达基于在上行调制部分和下行调制部分中的拍频信号的频谱中观察到的投影部分的频率来检测预定对象的相对距离和相对速度中的至少一个,其中 突出部分由同一个物体产生。 雷达确定安装有雷达的车辆等预定移动物体的移动速度,以及上升调制部中的拍频信号的频谱中观察到的投射部之间的频率差, 调制部分被反算,其中频差对应于静止对象,并且基于优先级提取对应于频差的预定对。
    • 17. 发明授权
    • Radar system and method of adjusting characteristics thereof
    • 雷达系统及其调整特性的方法
    • US06674395B2
    • 2004-01-06
    • US10345962
    • 2003-01-17
    • Motoi NakanishiToru IshiiTetsu Nishimura
    • Motoi NakanishiToru IshiiTetsu Nishimura
    • G01S1334
    • G01S7/4008G01S13/345G01S13/42G01S13/584G01S13/931
    • A radar system includes a transmitting/receiving unit, having a voltage controlled oscillator, for repeatedly transmitting a triangular transmission signal including a frequency-gradually-rising up-modulation interval and a frequency-gradually-dropping down-modulation interval and for receiving a reception signal including a reflected signal from a target, a frequency analysis unit, a data storing unit for storing time-varying characteristics of input values to a D/A converter that monotonically change an oscillation frequency of the voltage controlled oscillator with time, in the form of data concerning an expression representing the time-varying characteristics, and a data processing unit for determining the input values to the D/A converter with reference to the data. At least one of the relative distance to the target and the relative speed of the target is detected based on a beat signal during the up-modulation interval and the beat signal during the down-modulation interval.
    • 一种雷达系统包括具有压控振荡器的发射/接收单元,用于重复发射包括频率逐渐升高的上调调制间隔和逐渐下降的下降调制间隔的三角形发送信号,并用于接收接收 信号,其包括来自目标的反射信号,频率分析单元,数据存储单元,用于将输入值的时变特性存储到D / A转换器,其以时间形式单调地改变压控振荡器的振荡频率,形式 关于表示时变特性的表达式的数据;以及数据处理单元,用于参考数据确定D / A转换器的输入值。 基于在上调制间隔期间的搏动信号和下调制间隔期间的拍频信号来检测与目标的相对距离和目标的相对速度中的至少一个。