Radar system having arrangements and methods for the decoupling of transmitting and receiving signals and for the suppression of interference radiation
    1.
    发明授权
    Radar system having arrangements and methods for the decoupling of transmitting and receiving signals and for the suppression of interference radiation 有权
    雷达系统具有用于解耦发射和接收信号以及抑制干扰辐射的布置和方法

    公开(公告)号:US09182476B2

    公开(公告)日:2015-11-10

    申请号:US13256488

    申请日:2010-04-01

    摘要: Using a radar system in a motor vehicle, high frequency individual signal pulses are transmitted from at least one transmitting antenna, and at least one receiving antenna receives reception signals formed by reflection of the transmitted signal pulses from objects in the surroundings. The reception signals are mixed with the high-frequency signal to produce low-frequency mixed signals representing the sequence of individual signal pulses. The phase angle of the mixed signals is varied over successive individual signal pulses thereof by varying the phase angle of: the successive individual transmitted signal pulses, the high-frequency signals used for the mixing, and/or the mixed signals. In further processing of the mixed signals to determine the distance and the relative velocity of detected objects, an interference component can be separated and/or suppressed from a useful signal component because the useful signal component has the known phase angle variation but the interference component does not.

    摘要翻译: 使用机动车辆中的雷达系统,从至少一个发射天线发射高频单个信号脉冲,并且至少一个接收天线接收通过从周围物体发射的信号脉冲的反射而形成的接收信号。 接收信号与高频信号混合,以产生表示各个信号脉冲序列的低频混合信号。 混合信号的相位角通过改变相邻的各个发射信号脉冲,用于混合的高频信号和/或混合信号的相位角,在连续的各个信号脉冲上变化。 在进一步处理混合信号以确定检测对象的距离和相对速度时,干扰分量可以与有用信号分量分离和/或抑制,因为有用信号分量具有已知的相位角变化但干扰分量确实 不。

    Radar system comprising overlapping transmitter and receiver antennas
    2.
    发明授权
    Radar system comprising overlapping transmitter and receiver antennas 有权
    雷达系统包括重叠的发射机和接收机天线

    公开(公告)号:US08436763B2

    公开(公告)日:2013-05-07

    申请号:US12994755

    申请日:2009-07-02

    IPC分类号: G01S13/00

    摘要: A radar system for recording the environment of a motor vehicle includes transmission antennas for emitting transmission signals, receiver antennas for receiving transmission signals reflected by objects in the environment, and a signal processor for processing the received signals. The antennas are planar and are situated on a level surface. Received signals are acquired from different combinations of the transmitter and receiver antennas. In the signal processor, the angular position of objects in a spatial direction R is estimated from the received signals, based on recognition that the received signals from an individual object have different phase positions depending on the angular position of the object in the spatial direction R. Two of the transmitter and receiver antennas overlap in the spatial direction R without coinciding, by special arrangements or configurations of the transmitter and receiver antennas.

    摘要翻译: 用于记录机动车辆的环境的雷达系统包括用于发射传输信号的发射天线,用于接收由环境中的对象反射的传输信号的接收机天线以及用于处理接收到的信号的信号处理器。 天线是平面的并且位于水平表面上。 从发射机和接收机天线的不同组合中获取接收的信号。 在信号处理器中,从接收到的信号估计对象在空间方向R上的角度位置,这取决于来自各个物体的接收信号具有不同的相位位置,这取决于物体在空间方向R上的角位置 两个发射机和接收机天线通过发射机和接收机天线的特殊配置或配置在空间方向R上重叠而不重合。

    Method of suppressing interferences in systems for detecting objects
    3.
    发明授权
    Method of suppressing interferences in systems for detecting objects 失效
    抑制用于检测物体的系统中的干扰的方法

    公开(公告)号:US07463181B2

    公开(公告)日:2008-12-09

    申请号:US11018813

    申请日:2004-12-20

    摘要: In a method for suppressing interferences while detecting objects in a target area, a transmitter transmits a sequence of pulses into the target area, and a receiver detects the resulting reflection signal of the pulses reflected from the objects, within successive time windows that are referenced to the moment of transmitting an individual pulse and thus represent distance gates. The time spacing between the successive individual pulses is variable and randomized according to the pseudo-noise principle within predetermined limits, and the time windows are adapted accordingly. The received reflection signal may be sampled, digitized, digitally pre-processed and digitally filtered in the individual distance gates. A non-linear digital filter, preferably a sliding median filter, is used for the filtering to suppress transient disturbances. The median is determined from an odd number of consecutive sampled values of a reflection signal detected within a distance gate.

    摘要翻译: 在用于在检测目标区域中的物体的同时抑制干扰的方法中,发射器将目标区域中的脉冲序列发送到接收机,在接收的连续时间窗口内,接收机检测从物体反射的脉冲的反馈信号 发送单个脉冲并因此表示距离门的时刻。 连续单独脉冲之间的时间间隔根据伪噪声原理在预定限度内是可变的和随机化的,并且时间窗口相应地进行调整。 接收到的反射信号可以在各个距离门中被采样,数字化,数字预处理和数字滤波。 使用非线性数字滤波器,优选为滑动中值滤波器,用于滤波以抑制瞬态干扰。 中值由在距离门内检测到的反射信号的奇数个连续采样值确定。

    Circuit arrangement for generating an IQ-signal
    4.
    发明授权
    Circuit arrangement for generating an IQ-signal 失效
    用于产生IQ信号的电路装置

    公开(公告)号:US07274922B2

    公开(公告)日:2007-09-25

    申请号:US11018844

    申请日:2004-12-20

    IPC分类号: H04B1/26

    CPC分类号: H03H7/21

    摘要: Circuits generate an IQ voltage or current signal having orthogonal I- and Q-parts of approximately equal amplitude from an electric input signal having a frequency varying slightly around a carrier frequency, without needing a complex mixer. The circuit includes at least one ohmic resistance and at least one reactance connected in series (for a voltage) or in parallel (for a current). The reactance has an impedance at the carrier frequency approximately matching the resistance value of the ohmic resistance. The I- and Q-parts of the voltage signal are tapped as voltage drops across the resistance and the reactance. With two such series circuit branches in parallel, both voltage signal parts can be referenced directly to a reference potential, e.g. ground. The I- and Q-parts of the current signal are tapped as currents flowing through the resistance and the reactance. The circuit can be integrated at the output of a bandpass filter.

    摘要翻译: 电路产生IQ电压或电流信号,该电压或电流信号具有大约相等幅度的正交I和Q部分,其电荷输入信号具有稍微在载波频率附近变化的频率,而不需要复合混频器。 该电路包括至少一个欧姆电阻和至少一个串联(用于电压)或并联(用于电流)的电抗。 电抗在载波频率处具有与欧姆电阻的电阻值近似匹配的阻抗。 电压信号的I和Q部分作为电压和电抗之间的电压降被抽头。 通过并联两个这样的串联电路分支,两个电压信号部分可以直接参考参考电位,例如参考电压。 地面。 电流信号的I和Q部分被电流流过电阻和电抗。 电路可以集成在带通滤波器的输出端。

    Circuit arrangement for generating an IQ-signal
    5.
    发明申请
    Circuit arrangement for generating an IQ-signal 失效
    用于产生IQ信号的电路装置

    公开(公告)号:US20050156659A1

    公开(公告)日:2005-07-21

    申请号:US11018844

    申请日:2004-12-20

    IPC分类号: H02M7/00 H03H7/21

    CPC分类号: H03H7/21

    摘要: Circuits generate an IQ voltage or current signal having orthogonal I- and Q-parts of approximately equal amplitude from an electric input signal having a frequency varying slightly around a carrier frequency, without needing a complex mixer. The circuit includes at least one ohmic resistance and at least one reactance connected in series (for a voltage) or in parallel (for a current). The reactance has an impedance at the carrier frequency approximately matching the resistance value of the ohmic resistance. The I- and Q-parts of the voltage signal are tapped as voltage drops across the resistance and the reactance. With two such series circuit branches in parallel, both voltage signal parts can be referenced directly to a reference potential, e.g. ground. The I- and Q-parts of the current signal are tapped as currents flowing through the resistance and the reactance. The circuit can be integrated at the output of a bandpass filter.

    摘要翻译: 电路产生IQ电压或电流信号,该电压或电流信号具有大约相等幅度的正交I和Q部分,其电荷输入信号具有稍微在载波频率附近变化的频率,而不需要复合混频器。 该电路包括至少一个欧姆电阻和至少一个串联(用于电压)或并联(用于电流)的电抗。 电抗在载波频率处具有与欧姆电阻的电阻值近似匹配的阻抗。 电压信号的I和Q部分作为电压和电抗之间的电压降被抽头。 通过并联两个这样的串联电路分支,两个电压信号部分可以直接参考参考电位,例如参考电压。 地面。 电流信号的I和Q部分被电流流过电阻和电抗。 电路可以集成在带通滤波器的输出端。

    Radar antenna arrangement
    6.
    发明申请
    Radar antenna arrangement 有权
    雷达天线布置

    公开(公告)号:US20120200465A1

    公开(公告)日:2012-08-09

    申请号:US11664636

    申请日:2005-10-07

    IPC分类号: H01Q1/32 H01Q3/02

    摘要: A radar antenna arrangement, in particular for motor vehicles, is presented, having of a longitudinal waveguide, into which electromagnetic waves are coupled in such a manner that they expand in the longitudinal direction (X) of the waveguide, and an interference structure (12) with a plurality of metallic sections, whereby the interference structure in proximity to the waveguide, at a distance from the waveguide in a first transverse direction (Y) to the waveguide, is arranged at least approximately parallel to the longitudinal direction (X) of the waveguide, so that the interference structure effects an adjusted radiation of the radar waves. The waveguide comprises in the longitudinal direction two metallic surfaces (31, 41) and between these, a dielectric medium (32, 42), whereby the surfaces (31, 41) run in a second transverse direction (Z), which stands both vertically to the first transverse direction (Y) and to the longitudinal direction (X) of the waveguide. Preferably, the interference structure (12) is designed as a rotatable drum with metallic sections which are changed on the circumference and a reflector arrangement is provided for bundling and polarising the waves.

    摘要翻译: 具有特别是用于机动车辆的雷达天线布置,具有纵向波导,电磁波以这样一种方式耦合到其中,使得它们在波导的纵向方向(X)上扩展,以及干涉结构(12 )与多个金属部分接合,由此在与波导的第一横向(Y)到波导的一定距离处的波导附近的干涉结构被布置成至少近似平行于纵向方向(X) 波导,使得干扰结构影响雷达波的调整辐射。 波导包括在纵向两个金属表面(31,41)之间并且在它们之间的介电介质(32,42),由此所述表面(31,41)沿第二横向方向(Z)延伸,所述第二横向方向 到第一横向(Y)和波导的纵向方向(X)。 优选地,干涉结构(12)被设计为具有在圆周上改变的金属部分的可旋转滚筒,并且提供反射器布置以捆绑和偏振波。

    Radar system for detecting the surroundings with compensation of interfering signals
    7.
    发明授权
    Radar system for detecting the surroundings with compensation of interfering signals 有权
    用于通过干扰信号补偿来检测周围环境的雷达系统

    公开(公告)号:US08203481B2

    公开(公告)日:2012-06-19

    申请号:US12310933

    申请日:2007-10-05

    IPC分类号: G01S7/36 G01S13/34 G01S13/91

    摘要: In a frequency-modulated radar system and method for detecting the surroundings, a compensation of interfering effects is achieved by varying one of the following values: a) a time spacing or temporal distance between the transmitted frequency ramps or the time gap between the frequency ramps, b) a time from the start of the respective transmitted frequency ramp to the beginning of the scanning of the received signal, c) a frequency at the start of the transmitted frequency ramp, and d) a sign of the slope of the transmitted frequency ramps.

    摘要翻译: 在用于检测周围环境的调频雷达系统和方法中,通过改变以下值之一来实现干扰效应的补偿:a)发射频率斜坡之间的时间间隔或时间距离或频率斜坡之间的时间间隔 b)从相应的发射频率斜坡开始到接收信号的扫描开始的时间,c)发射频率斜坡开始时的频率,以及d)发射频率的斜率的符号 坡道

    Radar sensor with frontal and lateral emission
    8.
    发明授权
    Radar sensor with frontal and lateral emission 有权
    雷达传感器具有正面和侧向发射

    公开(公告)号:US08593333B2

    公开(公告)日:2013-11-26

    申请号:US12994754

    申请日:2009-07-02

    摘要: A radar sensor includes a housing of radar-transmissive material, a circuit board in the housing, first and second antennas of several patch elements on the same or opposite surfaces of the circuit board, and a metal or metallized support supporting a rear surface of the circuit board. The first antenna has a beam axis that extends out through a front of the housing at an angle in a range from 45° to 90° relative to the circuit board plane. The sensor further includes a beam deflection structure arranged within the housing to deflect a beam axis of the second antenna out through the housing at an angle in a range from 0° to 45° relative to the circuit board plane.

    摘要翻译: 雷达传感器包括雷达透射材料的壳体,壳体中的电路板,电路板的相同或相对表面上的多个贴片元件的第一和第二天线以及支撑该电路板的后表面的金属或金属化支撑件 电路板。 第一天线具有一个梁轴,该轴线相对于电路板平面以45°至90°的角度延伸出外壳的前部。 传感器还包括布置在壳体内的光束偏转结构,以使第二天线的光束轴线相对于电路板平面以0°至45°的角度偏离壳体。

    Radar system with elevation measuring capability
    9.
    发明授权
    Radar system with elevation measuring capability 有权
    雷达系统具有仰角测量能力

    公开(公告)号:US08390507B2

    公开(公告)日:2013-03-05

    申请号:US12994748

    申请日:2009-07-02

    IPC分类号: G01S13/00

    摘要: A radar system transmits signals for recording the environment of a motor vehicle, and the signals are reflected back from objects in the environment. Received signals are acquired from different combinations of transmitter and receiver antennas of the system. With regard to a series of such antenna combinations having their respective phase centers ordered in a spatial direction R, the positions of the phase centers of the combinations vary periodically with the period length P in a spatial direction S that runs perpendicular to the spatial direction R. Signal processing circuitry makes conclusions about the position of an object in the spatial direction S, based on an evaluation that the received signals from the object have a phase portion that alternates with the period length P over the antenna combinations ordered as set forth above, depending on the angular position of the object in the spatial direction S.

    摘要翻译: 雷达系统传输用于记录机动车辆环境的信号,并且信号从环境中的物体反射回来。 从系统的发射机和接收机天线的不同组合获取接收的信号。 对于具有在空间方向R上排列的各自的相位的一系列这样的天线组合,组合的相位中心的位置在垂直于空间方向R的空间方向S上的周期长度P周期性地变化 信号处理电路基于来自对象的接收信号具有与上述有序天线组合的周期长度P相交的相位部分的评估,对空间方向S上的对象的位置进行结论, 取决于物体在空间方向S上的角度位置。

    Non-linear digital rank filtering of input signal values
    10.
    发明授权
    Non-linear digital rank filtering of input signal values 失效
    输入信号值的非线性数字秩滤波

    公开(公告)号:US07444365B2

    公开(公告)日:2008-10-28

    申请号:US11018865

    申请日:2004-12-20

    IPC分类号: G06F17/10

    摘要: Input values are non-linearly digitally filtered to produce as an output value the Rth-largest value among the K input values, wherein the Rth-largest value may be the median value with R=(K+1)/2. The input values are provided in any binary fixed point number representation. A respective selected bit of all the input values is evaluated to determine the Rth-largest bit value of this bit among the K input values, and this gives the value of the corresponding bit of the output value. In the input values of which the selected bit does not correspond to the determined Rth-largest bit value, all of the subsequent less-significant bits are set as dummy bits equal to the selected bit, which excludes these input values from being the Rth-largest value in the subsequent evaluation of the successive less-significant bits. Then these steps are repeated for the next selected less-significant bit, and so forth, thereby respectively determining the successive bits of the output value. Minor modifications are necessary depending on the particular numerical representation. The method can be used for implementing digital filters, in particular for signal processing in systems for object recognition.

    摘要翻译: 输入值被非线性数字滤波,以产生K个输入值中的R 0 - 最大值的输出值,其中R 0 - 最大值可以是 中值为R =(K + 1)/ 2。 输入值以任何二进制固定点数表示形式提供。 评估所有输入值的相应选择位以确定K个输入值中该位的第R个最大位值,并给出输出值的相应位的值。 在所选位不符合所确定的最大最大位值的输入值中,所有随后的较低有效位都被设置为等于所选位的虚拟位,其不包括 这些输入值是连续较低有效位的随后评估中的R 0 S最大值。 然后对下一个选择的较低有效位重复这些步骤等,从而分别确定输出值的连续位。 取决于具体的数字表示,需要进行小的修改。 该方法可用于实现数字滤波器,特别是用于对象识别系统中的信号处理。