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    • 22. 发明申请
    • VEHICLE COLLISION RADAR WITH RANDOMIZED FSK WAVEFORM
    • 具有随机FSK波形的车辆碰撞雷达
    • WO98032029A1
    • 1998-07-23
    • PCT/US1998/001246
    • 1998-01-17
    • G01S13/38B60R21/01B60R21/0134G01S7/35G01S7/36G01S13/02G01S13/34G01S13/42G01S13/536G01S13/93
    • G01S7/023B60R21/0134G01S7/35G01S7/352G01S7/354G01S7/36G01S13/347G01S13/426G01S13/536G01S13/931G01S2007/356G01S2013/9375
    • An automotive radar incorporates a repetitive randomized equivalent LFM sequence of frequencies for improved immunity to jamming from other automotive radars. Each frequency in the sequence is of sufficient duration to travel round trip over the detection range of the radar. The Doppler shift in the received signal is estimated by performing a spectral analysis on similar frequency components of the received signal, and is then removed from the entire received signal. The received signal (202) is then reordered (204) so as to form an equivalent LFM received signal, and is compared with a similarly reordered image of the transmitted signal so as to estimate the range to the target (210). The randomization sequence, initial start frequency, or initial time of the repetivie sequence are varied to minimize the effects of jamming by other radars, and this variation can be directionally dependent.
    • 汽车雷达包含重复的随机等效LFM频率序列,以提高其他汽车雷达的干扰免疫力。 序列中的每个频率具有足够的持续时间来在雷达的检测范围上行进往返。 通过对接收信号的类似频率分量执行频谱分析来估计接收信号中的多普勒频移,然后从整个接收信号中去除。 然后接收信号(202)被重新排序(204)以便形成等效的LFM接收信号,并且与所发射信号的类似的重新排序的图像进行比较,以估计到目标的范围(210)。 改变重复序列的随机化序列,初始起始频率或初始时间以最小化其他雷达的干扰的影响,并且该变化可以取决于方向。
    • 25. 发明申请
    • NEAR RANGE OBSTACLE DETECTION AND RANGING AID
    • 近距离障碍物检测和范围帮助
    • WO1994002867A1
    • 1994-02-03
    • PCT/US1992006226
    • 1992-07-27
    • GENERAL MICROWAVE CORPORATION
    • GENERAL MICROWAVE CORPORATIONADLER, Zdenek
    • G01S13/38
    • G01S7/023G01S7/038G01S7/354G01S13/34G01S13/726G01S13/931G01S2007/356G01S2013/9378
    • A range detection apparatus comprising means for generating high frequency energy over a finite frequency range and for frequency modulating over a limited range of bandwidth the generated signal. A first path (130) provides a phase reference (132) while a second path (160) provides for transmitting and receiving the signal. Along one of the paths, the frequency modulated signal is phase shifted (130) at a plurality of predetermined frequency values over a finite frequency range of bandwidth and at a predetermined plurality of phase-shifting values and at combinations of phase-shifting and frequency values to improve the relative range resolution. Additionally, a temperature compensated one port Z-network (162) is provided to generate a voltage of equal magnitude and opposite sign so that of the voltage reflected from the antenna (120).
    • 一种距离检测装置,包括用于在有限频率范围上产生高频能量并用于在有限的带宽范围内频率调制所产生的信号的装置。 第一路径(130)提供相位参考(132),而第二路径(160)提供发送和接收信号。 沿着这些路径之一,频率调制信号在带宽的有限频率范围和预定的多个移相值以及相移和频率值的组合处以多个预定频率值相移(130) 提高相对距离分辨率。 此外,提供温度补偿的一个端口Z网络(162)以产生相等幅度和相反符号的电压,使得从天线(120)反射的电压。
    • 28. 发明申请
    • VERFAHREN ZUM BETREIBEN EINER RADARVORRICHTUNG
    • 一种用于操作雷达设备
    • WO2016206841A1
    • 2016-12-29
    • PCT/EP2016/059608
    • 2016-04-29
    • ROBERT BOSCH GMBH
    • BROWN, ChristopherSCHOOR, Michael
    • G01S7/35G01S13/34G01S13/58G01S13/93
    • G01S13/584G01S7/354G01S13/343G01S13/931G01S2007/356
    • Verfahren zum Betreiben einer Radarvorrichtung (100), aufweisend die Schritte: - Ermitteln einer Matrix mit Zeitsignalen von reflektierter Radarstrahlung; - Ermitteln von Elementen einer Abstands-Geschwindigkeits-Leistungs-Matrix eines Radarziels aus den Zeitsignalen; - Durchführen einer ersten diskreten eindimensionalen Fourier-Transformation für die Elemente der Abstands-Geschwindigkeits-Leistungs-Matrix in einer ersten Dimension; und - Durchführen einer zweiten diskreten eindimensionalen Fouriertransformation für die Elemente der Abstands-Geschwindigkeits-Leistungs-Matrix in einer zweiten Dimension derart, dass die zweite diskrete eindimensionale Fouriertransformation für jedes zweite Element der Distanz-Geschwindigkeits-Leistungs-Matrix mathematisch definiert versetzt durchgeführt wird.
    • 操作包括以下步骤的雷达装置(100)的方法,包括: - 确定与反射的雷达辐射的时间信号的矩阵; - 确定从所述时间信号的雷达目标的距离的高速性能矩阵的元素; - 执行第一离散一维傅里​​叶变换的距离的高速性能矩阵在第一维度中的元素; 和 - 进行第二离散一维傅里​​叶在第二维度,使得所述第二离散一维傅里​​叶变换进行移位数学上的距离的高速性能矩阵的每个第二元件定义变换的距离的高速性能矩阵的元素。
    • 29. 发明申请
    • A VEHICLE RADAR SYSTEM
    • 车辆雷达系统
    • WO2016188895A1
    • 2016-12-01
    • PCT/EP2016/061412
    • 2016-05-20
    • AUTOLIV DEVELOPMENT ABKLOTZBUECHER, DirkPARADIE, Michael
    • KLOTZBUECHER, DirkPARADIE, Michael
    • G01S13/34G01S13/58G01S13/72G01S13/93G01S7/35
    • G01S13/343G01S7/354G01S13/584G01S13/726G01S13/931G01S2007/356G01S2013/9375
    • The present disclosure relates to a vehicle radar system (3) comprising at least one transceiver arrangement (52) that is arranged to generate and transmit a least one FMCW chirp signal (4a, 4b). Each chirp signal (4a, 4b) comprises a corresponding plurality of frequency ramps (r 1 , r 2 ). The vehicle radar system (3) is arranged to receive reflected signals (5a, 5b) and to mix the received signals (5a, 5b) with the respective transmitted chirp signal (4a, 4b) to obtain at least one IF signal (14). The vehicle radar system (3) is further arranged to produce a periodically updated dwell list (34), and to collect and process data in dependence of the present dwell list (34). The present dwell list (34) comprises information where the probability of presence of objects exceeds a certain threshold. The present disclosure also relates to a corresponding method.
    • 本公开涉及一种车辆雷达系统(3),其包括至少一个收发器装置(52),其布置成产生和发送至少一个FMCW线性调频脉冲信号(4a,4b)。 每个啁啾信号(4a,4b)包括相应的多个频率斜坡(r1,r2)。 车辆雷达系统(3)被布置成接收反射信号(5a,5b)并将接收的信号(5a,5b)与相应的发射的啁啾信号(4a,4b)混合以获得至少一个IF信号(14) 。 车辆雷达系统(3)还被布置成产生周期性更新的驻留列表(34),并且根据目前的驻留列表(34)收集和处理数据。 当前驻留列表(34)包括其中对象的存在概率超过特定阈值的信息。 本公开还涉及相应的方法。
    • 30. 发明申请
    • METHODS AND APPARATUS FOR PROCESSING CODED APERTURE RADAR (CAR) SIGNALS
    • 用于处理编码孔径雷达(CAR)信号的方法和装置
    • WO2015085120A9
    • 2016-06-30
    • PCT/US2014068668
    • 2014-12-04
    • HRL LAB LLC
    • LYNCH JONATHAN JXU ZHIWEI AKUAN YEN-CHENG
    • G01S13/90G01S7/28
    • G01S13/58G01S13/42G01S2007/356G01S2013/0236
    • A radar system in which Coded Aperture Radar processing is performed on received radar signals reflected by one or more objects in a field of view which reflect a transmitted signal which covers a field of view with K sweeps and each sweep including Q frequency changes. For Type II CAR, the transmitted signal also includes N modulated codes per frequency step. The received radar signals are modulated by a plurality of binary modulators the results of which are applied to a mixer. The output of the mixer, for one acquisition results in a set of QK (for Type I CAR) or QKN (for Type II CAR) complex data samples, is distributed among a number of digital channels, each corresponding to a desired beam direction. For each channel, the complex digital samples are multiplied, sample by sample, by a complex signal mask that is different for each channel.
    • 一种雷达系统,其中在视场中由一个或多个物体反射的接收到的雷达信号执行编码孔径雷达处理,其反射覆盖具有K个扫描的视​​场的发射信号,并且每个扫描包括Q个频率变化。 对于II型CAR,发射信号还包括每个频率步长的N个调制码。 所接收的雷达信号由多个二进制调制器调制,其结果应用于混频器。 用于一次采集的混合器的输出导致一组QK(用于类型I CAR)或QKN(用于II型CAR)复数数据样本,分布在多个数字通道中,每个数字通道对应于期望的波束方向。 对于每个通道,复数数字样本通过样本采样乘以每个通道不同的复信号掩码。