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1. 发明授权

US12117516B2 Radar apparatus and distance measurement method 有权
公开(公告)号：US12117516B2
公开(公告)日：2024-10-15
申请号：US17637662
申请日：2019-08-23
申请人： Nippon Telegraph and Telephone Corporation
发明人： Tatsuya Iizuka , Fumihiko Ishiyama , Yohei Toriumi , Jun Kato
IPC分类号： G01S13/34 , G01S7/35 , G01S13/38
CPC分类号： G01S13/341 , G01S7/356 , G01S13/38
摘要： A radar apparatus of the present embodiment includes a transmitting unit that transmits a frequency chirp signal whose frequency linearly changes with time, a receiving unit that receives a reflected wave that is the frequency chirp signal reflected by an object, a mixer that mixes the transmitted frequency chirp signal and the received reflected wave to obtain a beat signal, a frequency estimation unit that estimates a frequency of the beat signal, and a distance estimation unit that estimates a distance to the object based on the frequency of the beat signal. The frequency estimation unit calculates an autoregressive coefficient of an autoregressive model from a sequence of discrete signal values of the beat signal and estimates the frequency of the beat signal using a base frequency that is based on a pole of the autoregressive model.

2. 发明授权

US11975686B2 Security system 有权
公开(公告)号：US11975686B2
公开(公告)日：2024-05-07
申请号：US17945400
申请日：2022-09-15
申请人： DENSO CORPORATION
发明人： Takashi Saiki , Kenichirou Sanji
IPC分类号： B60R25/24 , B60R25/20 , G01S13/38 , G01S13/84 , G01S13/88 , G07C9/00
CPC分类号： B60R25/24 , B60R25/2072 , G01S13/38 , G01S13/84 , G01S13/886 , G07C9/00309 , B60R2325/205 , G07C2009/00555 , G07C2009/00793 , G07C2209/61 , G07C2209/63
摘要： A security system includes a portable terminal, a communication device communicating with the portable terminal, and a determination unit determining validity of the portable terminal. Phase data acquired from distance measuring radio wave is used to determine validity of communication between the portable terminal and the communication device. The received phase data of the distance measuring radio wave varies according to the distance from a transmission source. When the communication device and the portable terminal are fixed, and the communication device and the portable terminal have transmitted and received distance measuring radio waves having the same specific frequency, vehicle acquisition phase data and terminal acquisition phase data are the same. The determination unit determines, by using this two types of phase data, the validity of communication between the communication device and the portable terminal is determined.

3. 发明申请

US20180306911A1 METHOD AND SYSTEM FOR RESOLVING RANGE AMBIGUITY 审中-公开
公开(公告)号：US20180306911A1
公开(公告)日：2018-10-25
申请号：US15769862
申请日：2016-10-16
申请人： QAMCOM TECHNOLOGY AB
发明人： Thomas PERNSTÅL , Gary SMITH JONFORSEN
IPC分类号： G01S13/58 , G01S7/35
CPC分类号： G01S13/584 , B61L29/30 , G01S7/354 , G01S13/286 , G01S13/30 , G01S13/346 , G01S13/347 , G01S13/38 , G01S13/883 , G01S13/886 , G01S13/91 , G01S13/931 , G01S2013/9328
摘要： A system for resolving range ambiguity includes a wave generator a modulator for applying a digital signature to a continuous wave to generate a digitally-signed continuous wave, a transmitter for emitting the digitally-signed continuous wave from the ranging system as interrogating radiation towards an object, a receiver for receiving a portion of the interrogating radiation after reflection from the object, a correlator for correlating the portion of the interrogating radiation against the emitted digitally signed continuous wave according to the digital signature, a processor for determining from correlation in the correlator an elapsed time period between emitting the interrogating radiation and receiving the portion of the interrogating radiation after reflection from the object, wherein the processor calculates a range of the object from the transmitter by employing space-time adaptive processing and to determine a velocity of the object from correlation in the correlator using Doppler detection.

4. 发明申请

US20180301815A1 SLOT ANTENNA DEVICE 审中-公开
公开(公告)号：US20180301815A1
公开(公告)日：2018-10-18
申请号：US15945984
申请日：2018-04-05
申请人： NIDEC CORPORATION , WGR Co., Ltd.
发明人： Hiroyuki KAMO , Hideki KIRINO
IPC分类号： H01Q21/00
CPC分类号： H01Q21/005 , G01S7/03 , G01S13/345 , G01S13/347 , G01S13/38 , G01S13/867 , G01S13/87 , G01S13/878 , G01S13/931 , G01S19/51 , G01S2013/936 , G01S2013/9375 , G01S2013/9389 , G01S2013/9392 , H01Q13/10 , H01Q13/22 , H01Q21/064
摘要： A slot antenna device includes: a first electrically conductive member having a first electrically conductive surface and a second electrically conductive surface; a second electrically conductive member having a third electrically conductive surface that opposes the second electrically conductive surface; a waveguide member on the second electrically conductive surface; and an artificial magnetic conductor extending on both sides of the waveguide member. The first electrically conductive member has a slot. The waveguide member an electrically-conductive waveguide that opposes the third electrically conductive surface. The waveguide member includes a first ridge and a second ridge. One end of the first ridge and one end of the second ridge are opposed to each other. As viewed from a direction perpendicular to the waveguide face, the slot is located between the one end of the first ridge and the one end of the second ridge.

5. 发明申请

US20170090013A1 APPARATUS AND METHOD FOR ATTENUATING CLOSE-RANGE RADAR SIGNALS IN AN AUTOMOTIVE RADAR SENSOR 审中-公开
公开(公告)号：US20170090013A1
公开(公告)日：2017-03-30
申请号：US14870226
申请日：2015-09-30
申请人： Autoliv ASP, Inc.
发明人： Michael Paradie , Dirk Klotzbuecher , Walter Poiger , Matthew Douglas Marple , Olof Hugo Eriksson
IPC分类号： G01S7/292 , G01S13/93
CPC分类号： G01S7/2921 , G01S7/038 , G01S7/2926 , G01S13/18 , G01S13/26 , G01S13/30 , G01S13/38 , G01S13/931 , G01S2007/2886 , G01S2013/9332 , G01S2013/9378 , G01S2013/9385 , G01S2013/9389
摘要： A radar system and method include a first transmitted radar signal having a first frequency and a second transmitted radar signal having a second frequency different from the first frequency. A receiver receives reflected radar signals generated by reflection of the transmitted radar signals and generates receive signals indicative of the reflected radar signals, a first receive signal being indicative of a first reflected radar signal generated by reflection of the first transmitted radar signal, and a second receive signal being indicative of a second reflected radar signal generated by reflection of the second transmitted radar signal. A processor receives the first and second receive signals and computes a difference between the first and second receive signals to generate a difference signal, the processor processing the difference signal to provide radar information.

6. 发明申请

US20170074979A1 Multi Frequency Range Estimation 审中-公开
标题翻译：多频率范围估计
公开(公告)号：US20170074979A1
公开(公告)日：2017-03-16
申请号：US15123168
申请日：2015-03-04
申请人： Weibel Scientific A/S
发明人： Jens Jørgen NIELSEN
IPC分类号： G01S13/38 , G01S15/08 , G01S17/36
CPC分类号： G01S13/38 , G01S13/36 , G01S15/08 , G01S17/36
摘要： Disclosed is a method for estimating the range to an object, the method comprising: transmitting a first signal towards the object; receiving a reflected echo signal reflected from the object; and determining a measured point (MP) in an N-dimensional phase space. The range to the object is estimated by selecting a candidate range estimate from a plurality of candidate range estimates, each candidate range estimate in the unambiguous range R having an unique associated point in the N-dimensional phase space positioned on range lines, and wherein a candidate range estimate is selected dependent on the distance from its unique associated point in the N-dimensional phase space to the measured point (MP), so that a single range estimate is generated using information from at least two measured phase differences without directly averaging ambiguous range estimates.
摘要翻译：公开了一种用于估计对象的范围的方法，所述方法包括：向所述对象发送第一信号; 接收从物体反射的反射回波信号; 以及确定N维相位空间中的测量点（MP）。通过从多个候选范围估计中选择候选范围估计来估计到对象的范围，每个候选范围估计在明确范围R中具有位于范围线上的N维相位空间中的唯一关联点，并且其中a 根据从N维相位空间中的唯一关联点到测量点（MP）的距离来选择候选范围估计，使得使用来自至少两个测量相位差的信息生成单个范围估计，而不直接平均不明确范围估计。

7. 发明申请

US20160245910A1 Distance Measuring Apparatus and Method for Calculating a Distance in a Conducting Structure 有权
标题翻译：距离测量装置和计算导电结构距离的方法
公开(公告)号：US20160245910A1
公开(公告)日：2016-08-25
申请号：US15049764
申请日：2016-02-22
申请人： ASTYX GmbH
发明人： Guenther Trummer , Ralf Gehring
IPC分类号： G01S13/38 , G01S7/02 , G01D5/48 , G01S13/88
CPC分类号： G01S13/38 , F15B15/2869 , G01D5/48 , G01S7/025 , G01S13/88
摘要： A distance measuring apparatus and method for calculating a distance in a conducting structure are provided. One distance measuring apparatus provides for calculating a distance between a reflection body in a conducting structure and an injection point provided on an end section of the conducting structure for electromagnetic waves is provided. The distance measuring apparatus includes a transmitting and receiving device with a conduction cross-over provided at the injection point for the coaxially-inductive coupling of the transmitting and receiving device to the conducting structure in order to inject an electromagnetic wave into the conducting structure and to decouple the electromagnetic wave reflected on the reflection body from the conducting structure. The distance measuring apparatus also includes an analysis device for calculating a distance between the injection point and the reflection body from the phase difference between the injected electromagnetic wave and the decoupled electromagnetic wave.
摘要翻译：提供了用于计算导电结构中的距离的距离测量装置和方法。提供了一种距离测量装置，用于计算导电结构中的反射体与设置在用于电磁波的导电结构的端部上的注入点之间的距离。该距离测量装置包括一个发射和接收装置，该发射和接收装置在注入点处设置有用于将发射和接收装置同时感应耦合到导电结构的导电交叉，以将电磁波注入到导电结构中，将反射体上反射的电磁波与导电结构分离。距离测量装置还包括分析装置，用于根据注入的电磁波和解耦电磁波之间的相位差计算注入点和反射体之间的距离。

8. 发明申请

US20150145714A1 RADAR APPARATUS 有权
标题翻译：雷达装置
公开(公告)号：US20150145714A1
公开(公告)日：2015-05-28
申请号：US14403926
申请日：2013-05-21
申请人： DENSO CORPORATION
发明人： Yuu Watanabe , Koichiro Suzuki
IPC分类号： G01S13/50 , G01S13/58
CPC分类号： G01S13/50 , G01S13/38 , G01S13/584 , G01S13/72 , G01S13/931
摘要： In a dual-frequency CW radar apparatus, first/second beat signals that include reflection components of radar waves conforming to transmission signals of first/second frequencies are generated for each antenna element and the generated signals are Fourier transformed. A power spectrum average of the beat signals is used as a basis for the detection of a peak frequency fp corresponding to the frequency of the reflection components. A second eigenvalue λ2 of a correlation matrix: Ry=(½)·[y1,y2][y1,y2]H is calculated, the matrix being based on first received vector y1/second received vector y2 having elements that are Fourier transformed values of the peak frequency fp. Based on the magnitude of the eigenvalue λ2, whether or not the reflection components corresponding to the peak frequency fp are synthetic components of the reflected waves from a plurality of targets is decided.
摘要翻译：在双频CW雷达装置中，对于每个天线元件生成包括符合第一/第二频率的传输信号的雷达波的反射分量的第一/第二拍频信号，并且所生成的信号被傅里叶变换。使用拍频信号的功率谱平均值作为检测与反射分量的频率对应的峰值频率fp的基础。计算相关矩阵的第二特征值λ2：Ry =（½）·[y1，y2] [y1，y2] H，基于具有作为傅里叶变换值的元素的第一接收矢量y1 /第二接收矢量y2 的峰值频率fp。基于特征值λ2的大小，判定与峰值频率fp对应的反射分量是否是来自多个目标的反射波的合成分量。

9. 发明申请

US20140340254A1 RADAR DEVICE AND A METHOD FOR DETECTING A MALFUNCTION OF A RECEIVER CHANNEL OF A RADAR DEVICE 有权
标题翻译：雷达装置和用于检测雷达装置的接收器通道的故障的方法
公开(公告)号：US20140340254A1
公开(公告)日：2014-11-20
申请号：US14359891
申请日：2012-11-21
申请人： Hella KGaA Hueck & Co.
发明人： Thomas Hesse
IPC分类号： G01S13/02 , G01S7/40
CPC分类号： G01S13/02 , G01S7/4008 , G01S7/4021 , G01S13/38 , G01S13/931
摘要： A radar device for transmitting and receiving a signal in a frequency band for target detection. The invention includes a control means, an oscillator, with an input of the oscillator being connected via a converter to the control means, with it being able to address the oscillator via control means in order to generate a signal, and with it being possible to tap the signal generated via the oscillator at an output of the oscillator, at least one transmission antenna for transmitting the signals provided at the output of the oscillator, with the transmission antenna being connected to the output of the oscillator, and at least one receiver channel for receiving a receiver signal, for processing the receiver signal, and for forwarding the processed receiver signal to the control means, with the receiver channel comprising at least one receiving antenna for receiving the receiver signal and a mixer for mixing the receiver signal with the signal provided at the output of the oscillator, and with the mixer being connected to the output of the oscillator.
摘要翻译：用于发送和接收用于目标检测的频带中的信号的雷达装置。本发明包括一个控制装置，一个振荡器，其振荡器的输入端通过一个转换器连接到控制装置，它能通过控制装置寻址振荡器，以产生一个信号，并且可以在振荡器的输出端接收通过振荡器产生的信号，至少一个发送天线，用于发送在振荡器的输出处提供的信号，发送天线连接到振荡器的输出，以及至少一个接收器通道用于接收接收机信号，用于处理接收机信号，以及将经处理的接收机信号转发到控制装置，接收机信道包括用于接收接收机信号的至少一个接收天线和用于将接收机信号与信号混合的混频器提供在振荡器的输出端，并且混频器连接到振荡器的输出端。

10. 发明申请

US20130181862A1 DISTANCE MEASURING APPARATUS AND DISTANCE MEASURING METHOD 失效
标题翻译：距离测量装置和距离测量方法
公开(公告)号：US20130181862A1
公开(公告)日：2013-07-18
申请号：US13722065
申请日：2012-12-20
申请人： NIRECO CORPORATION
发明人： Koichi MATSUMOTO , Yasumasa KATO
IPC分类号： G01S13/38
CPC分类号： G01S13/38 , G01S13/284
摘要： Disclosed is a distance measuring apparatus which includes: a first pulse generating means (135) which generates reference signals; a second pulse generating means (137) which generates subject detection signals; a time measuring section (139) which measures a period of time from a time when a first pulse is generated to a time when a second pulse is generated; a first phase detecting section (141) which detects the first phase of a signal received using a signal at a first frequency; a second phase detecting section (163) which detects the second phase of a signal received using a signal at a second frequency; and a distance calculating section (165) which calculates the distance to the subject on the basis of output from the time measuring section, the first phase detecting section and the second phase detecting section.
摘要翻译：公开了一种距离测量装置，其包括：产生参考信号的第一脉冲发生装置（135）产生对象检测信号的第二脉冲发生装置（137）; 时间测量部分，测量从产生第一脉冲的时间到产生第二脉冲的时间的时间段; 检测使用第一频率的信号接收的信号的第一相位的第一相位检测部分（141）第二相位检测部分，用于检测使用第二频率的信号接收的信号的第二相位; 以及距离计算部（165），其基于来自时间测量部，第一相位检测部和第二相位检测部的输出来计算到被摄体的距离。

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