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1. 发明申请

US20190004148A1 Multi-Chip Transceiver Testing in a Radar System 审中-公开
公开(公告)号：US20190004148A1
公开(公告)日：2019-01-03
申请号：US16112351
申请日：2018-08-24
申请人： Texas Instruments Incorporated
发明人： Daniel Colum Breen , Brian Paul Ginsburg , Krishnanshu Dandu
IPC分类号： G01S7/40 , G01S13/87 , G01S7/35 , G01S13/02 , G01S13/93
CPC分类号： G01S7/4004 , G01S7/032 , G01S7/35 , G01S7/4056 , G01S13/34 , G01S13/343 , G01S13/87 , G01S13/931 , G01S2007/4069 , G01S2013/0245
摘要： A radar system is provided that includes a first radar transceiver integrated circuit (IC) including transmission signal generation circuitry operable to generate a continuous wave signal and a first transmit channel coupled to the transmission generation circuitry to receive the continuous wave signal and transmit a test signal based on the continuous wave signal, and a second radar transceiver IC including a first receive channel coupled to an output of the first transmit channel of the first radar transceiver IC via a loopback path to receive the test signal from first the transmit channel, the second radar transceiver IC operable to measure phase response in the test signal.

2. 发明授权

US10012721B2 Virtual distance test techniques for radar applications 有权
公开(公告)号：US10012721B2
公开(公告)日：2018-07-03
申请号：US14626252
申请日：2015-02-19
申请人： Teradyne, Inc.
发明人： Jeorge S. Hurtarte , Daniel A. Rosenthal
IPC分类号： G01S7/40
CPC分类号： G01S7/4052 , G01S7/4056 , G01S2007/4086 , G01S2007/4095
摘要： A testing device for testing a radar device. The testing device may be configured to determine a first frequency difference between a frequency of a first signal or a second signal and a frequency of a third signal based on a first distance value; transmit to the radar device the first signal; receive the second signal from the radar device; transmit to the radar device the third signal at an offset relative to at least one of the first signal and the second signal based on the first frequency difference; and receive from the radar device a fourth signal indicating a second distance value or a second frequency difference between the frequency of the second signal and the frequency of the third signal, determined by the radar device, for comparison with the first distance value or the first frequency difference.

3. 发明申请

US20180113193A1 RADAR TRANSCEIVER WITH PHASE NOISE CANCELLATION 审中-公开
公开(公告)号：US20180113193A1
公开(公告)日：2018-04-26
申请号：US15726433
申请日：2017-10-06
申请人： Infineon Technologies AG
发明人： Mario HUEMER , Alexander MELZER , Alexander ONIC , Rainer STUHLBERGER
IPC分类号： G01S7/28 , G01S7/35 , H03B1/04 , G01S7/40 , G01S13/34 , G01S7/03
CPC分类号： G01S7/2813 , G01S7/038 , G01S7/35 , G01S7/4056 , G01S13/34 , G01S13/343 , G01S13/931 , G01S2007/028 , G01S2007/406 , G01S2007/4065 , H03B1/04 , H03B2202/073
摘要： A method for cancelling phase noise in a radar signal is described herein. In accordance with one embodiment, the method includes transmitting an RF oscillator signal, which represents a local oscillator signal including phase noise, to a radar channel and receiving a respective first RF radar signal from the radar channel. The first RF radar signal included at least one radar echo of the transmitted RF oscillator signal. Further, the method includes applying the RF oscillator signal to an artificial radar target composed of circuitry, which applies a delay and a gain to the RF oscillator signal, to generate a second RF radar signal. The second RF radar signal is modulated by a modulation signal thus generating a frequency-shifted RF radar signal. Further, the method includes subtracting the frequency-shifted RF radar signal from the first RF radar signal.

4. 发明授权

US09197223B2 Electronic circuit, radar apparatus, and method of performing self-diagnosis on radar apparatus 有权
标题翻译：电子电路，雷达装置和雷达装置自诊断方法
公开(公告)号：US09197223B2
公开(公告)日：2015-11-24
申请号：US14159626
申请日：2014-01-21
申请人： FUJITSU LIMITED
发明人： Hiroshi Matsumura
IPC分类号： H04B7/185 , H03L7/085 , H03L7/07 , G01S7/40 , G01S13/34 , G01S13/44 , G01S13/93
CPC分类号： H03L7/085 , G01S7/4056 , G01S13/345 , G01S13/44 , G01S13/931 , G01S2007/4065 , G01S2007/4091 , H03L7/07
摘要： An electronic circuit includes a first PLL circuit including a first frequency divider whose frequency-division ratio is variably controlled, a second frequency divider configured to divide a frequency of a signal input into the first frequency divider, a delay circuit configured to delay an output signal of the second frequency divider, a second PLL circuit configured to receive an output signal of the delay circuit as a reference signal, and a mixer circuit configured to receive as inputs an oscillating signal of the first PLL circuit and an oscillating signal of the second PLL circuit.
摘要翻译：电子电路包括：第一PLL电路，包括其分频比可变地控制的第一分频器;第二分频器，被配置为将输入到第一分频器的信号的频率分频;延迟电路，被配置为延迟输出信号的第二PLL分配器，被配置为接收所述延迟电路的输出信号作为参考信号的第二PLL电路，以及配置为接收所述第一PLL电路的振荡信号和所述第二PLL的振荡信号作为输入的混合器电路电路。

5. 发明申请

US20150331089A1 FMCW RADAR APPARATUS 有权
标题翻译： FMCW雷达设备
公开(公告)号：US20150331089A1
公开(公告)日：2015-11-19
申请号：US14653248
申请日：2013-12-17
申请人： DENSO CORPORATION
发明人： Masanobu YUKUMATSU
IPC分类号： G01S7/35 , G01S13/34
CPC分类号： G01S7/35 , G01S7/4008 , G01S7/4056 , G01S13/34 , G01S13/93
摘要： In a frequency modulated continuous wave (FMCW) radar apparatus, a transmitting section transmits a transmission signal and a receiving section outputs a beat signal. During this output period, a frequency-intensity property of a bias power supply voltage supplied from a power supply bias circuit is obtained. On the basis of determining whether or not the obtained frequency-intensity property satisfies a predetermined oscillation condition, it is checked whether or not there occurs oscillation in the power supply bias circuit.
摘要翻译：在频率调制连续波（FMCW）雷达装置中，发送部发送发送信号，接收部输出拍频信号。在该输出期间，获得从电源偏置电路供给的偏置电源电压的频率强度特性。在确定所获得的频率 - 强度性能是否满足预定振荡条件的基础上，检查电源偏置电路中是否发生振荡。

6. 发明授权

US08847816B2 Calibration of a radar unit with device-specific correction curves 有权
标题翻译：用设备特定的校正曲线校准雷达单元
公开(公告)号：US08847816B2
公开(公告)日：2014-09-30
申请号：US13122203
申请日：2009-08-12
申请人： Peter Feil
发明人： Peter Feil
IPC分类号： G01S7/40 , G01S13/08
CPC分类号： G01S7/4056 , G01F23/284 , G01S7/40 , G01S13/34
摘要： A method for lessening disturbances of a measurement signal in a radar unit for distance measurement by means of frequency-modulated radar in continuous wave operation. The method comprises steps of: registering, in a reference measurement, a reference signal as a function of time; deriving an error correction signal from the registered reference signal, wherein the error correction signal predominantly comprises spectral components caused or influenced by device-specific defects of the radar unit; registering a measurement signal; and correcting the measurement signal in accordance with the error correction signal by means of digital signal processing.
摘要翻译：一种用于通过连续波动作中的调频雷达减轻雷达单元中的测量信号的距离测量的干扰的方法。该方法包括以下步骤：在参考测量中注册作为时间的函数的参考信号; 从所注册的参考信号导出纠错信号，其中所述纠错信号主要包括由所述雷达单元的设备特定缺陷引起或影响的频谱分量; 注册测量信号; 并通过数字信号处理根据纠错信号校正测量信号。

7. 发明授权

US08217829B2 Apparatus and method for determining axis deviation of radar 有权
标题翻译：用于确定雷达轴偏差的装置和方法
公开(公告)号：US08217829B2
公开(公告)日：2012-07-10
申请号：US12782313
申请日：2010-05-18
申请人： Masahito Shingyoji
发明人： Masahito Shingyoji
IPC分类号： G01S13/00 , G01S7/40
CPC分类号： G01S7/4026 , G01S7/4056 , G01S13/20 , G01S13/931 , G01S2007/403 , G01S2007/4091 , G01S2013/9353 , G01S2013/9385
摘要： A radar, mounted on a vehicle, emits electromagnetic waves to a side area of a vehicle and receives reflected electromagnetic waves to detect a distance and a bearing of a physical object. A speed of the vehicle is detected. When the vehicle speed is greater than a predetermined value, it is determined whether multiple reflection occurs based on at least distances detected by the radar. If it is determined that the multiple reflection occurs, an axis deviation of the radar is determined based on a difference between the detected bearing of the multiple reflection waves and a reference bearing.
摘要翻译：安装在车辆上的雷达向车辆的侧面区域发射电磁波，并接收反射的电磁波以检测物体的距离和方位。检测到车辆的速度。当车速大于预定值时，基于雷达检测到的至少距离来确定是否发生多次反射。如果确定发生多重反射，则基于多个反射波的检测到的轴承与参考轴承之间的差异来确定雷达的轴偏差。

8. 发明授权

US08009082B2 Mobile radar and planar antenna 失效
标题翻译：移动雷达和平面天线
公开(公告)号：US08009082B2
公开(公告)日：2011-08-30
申请号：US12422276
申请日：2009-04-12
申请人： Hiroshi Shinoda , Mitsutoshi Morinaga
发明人： Hiroshi Shinoda , Mitsutoshi Morinaga
IPC分类号： G01S13/00 , H01Q21/08
CPC分类号： G01S13/931 , G01S3/74 , G01S7/2813 , G01S7/352 , G01S7/4017 , G01S7/4021 , G01S7/4056 , G01S13/34 , G01S13/42 , G01S13/4454 , G01S13/4463 , G01S2007/356 , G01S2007/403 , G01S2007/4091 , G01S2013/0263 , G01S2013/9321 , G01S2013/9375 , H01Q3/2635
摘要： In a conventional automotive radar, a return occurs in a phase difference characteristic necessary for a super-resolution method, resulting in an increase of a detection error, or an extremely narrowed azimuth detection range. A transmitting array antenna, and receiving array antennas are composed of antenna elements respectively, and aligned in a horizontal direction. The weighting of receiving sensitivities of the antenna elements of the receiving array antenna 1 is A1, A2, A3, and A4, which are monotonically decreased from an inner side toward an outer side as represented by A1≧A2≧A3≧A4. On the other hand, the receiving array antenna 3 is symmetrical with the receiving array antenna with respect to the receiving array antenna 1.
摘要翻译：在传统的汽车雷达中，在超分辨率方法所需的相位差特性中返回，导致检测误差增加或方位检测范围极窄。发射阵列天线和接收阵列天线分别由天线元件组成，并在水平方向上排列。接收阵列天线1的天线元件的接收灵敏度的加权为A1，A2，A3和A4，如A1≥A2≥A3≥A4所示，从内侧朝向外侧单调减小。另一方面，接收阵列天线3与接收阵列天线相对于接收阵列天线1对称。

9. 发明授权

US07973701B2 Automotive radar sensor blockage detection system and related techniques 有权
标题翻译：汽车雷达传感器阻塞检测系统及相关技术
公开(公告)号：US07973701B2
公开(公告)日：2011-07-05
申请号：US12414227
申请日：2009-03-30
申请人： Stephen P. Lohmeier , Nguyen D. Nguyen
发明人： Stephen P. Lohmeier , Nguyen D. Nguyen
IPC分类号： G01S13/00
CPC分类号： G01S7/4004 , G01S7/4056 , G01S13/931 , G01S2007/4039 , G01S2007/4091 , G01S2013/9332 , G01S2013/9353 , G01S2013/9385
摘要： A blockage detection system and method for use in a sensor such as a side object detection (SOD) sensor in an automotive radar system is described. The sensor emits signals and receives return signals (i.e. reflected signals) from a passing object. If the passing object is within a virtual detection zone, the sensor uses the information from the passing object to determine if a blockage condition exists in the sensor. The technique utilizes statistics related to the passing object to determine whether a blockage condition exists within the sensor. In one embodiment, a SOD sensor mounted in a first vehicle uses information from a second passing vehicle (e.g. radar return information) to determine whether a blockage condition exists within the SOD sensor itself.
摘要翻译：描述了一种在汽车雷达系统中用于诸如侧面物体检测（SOD）传感器的传感器中的阻塞检测系统和方法。传感器发出信号并从传递对象接收返回信号（即反射信号）。如果传递对象在虚拟检测区域内，则传感器使用来自传递对象的信息来确定传感器中是否存在堵塞状况。该技术利用与传递对象相关的统计量来确定传感器内是否存在堵塞状况。在一个实施例中，安装在第一车辆中的SOD传感器使用来自第二经过车辆的信息（例如，雷达返回信息）来确定SOD传感器本身内是否存在堵塞状况。

10. 发明申请

US20110068970A1 VEHICULAR RADAR DEVICE 有权
标题翻译：车辆雷达装置
公开(公告)号：US20110068970A1
公开(公告)日：2011-03-24
申请号：US12715902
申请日：2010-03-02
申请人： Masashi MITSUMOTO
发明人： Masashi MITSUMOTO
IPC分类号： G01S13/58 , G01S13/00
CPC分类号： G01S13/931 , G01S7/4026 , G01S7/4056 , G01S13/52 , G01S13/58 , G01S2007/403 , G01S2007/4091 , G01S2013/9353 , G01S2013/9375
摘要： Provided is a vehicular radar device which is capable of reducing an operation resource quantity necessary for a process of estimating an axis deviation angle in a radar measurement coordinate system, to thereby reduce a device size. The vehicular radar device includes: a measurement unit that measures an azimuth angle and a relative Doppler velocity; an extraction/accumulation unit that extracts target information satisfying conditions related to the relative Doppler velocity, a travel speed and a turning velocity, and accumulates the azimuth angle and a velocity ratio obtained by dividing the relative Doppler velocity by the travel speed of the subject vehicle among the extracted target information; and an axis deviation angle estimate unit that reads the target information accumulated in the extraction/accumulation unit, and estimates an axis deviation angle of the measurement coordinate system of a radar based on a second-order polynomial expression of the azimuth angle of the target.
摘要翻译：提供一种车辆雷达装置，其能够减少在雷达测量坐标系中估计轴偏差角的处理所需的操作资源量，从而减小设备尺寸。车辆雷达装置包括：测量单元，其测量方位角和相对多普勒速度; 提取/累积单元，其提取满足与相对多普勒速度，行驶速度和转动速度相关的条件的目标信息，并且累积方位角和通过将相对多普勒速度除以本车辆的行驶速度而获得的速度比提取的目标信息; 以及轴偏差角估计单元，其读取在提取/累积单元中累积的目标信息，并且基于目标的方位角的二阶多项式表达来估计雷达的测量坐标系的轴偏差角。

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