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1. 发明授权

US11085990B2 Angle of arrival measurements using RF carrier synchronization and phase alignment methods 有权
公开(公告)号：US11085990B2
公开(公告)日：2021-08-10
申请号：US15929279
申请日：2020-04-21
申请人： PhasorLab, Inc.
发明人： Joshua C. Park , Cuneyt Demirdag , Glen Wolverton , Devang Topiwala , Paul McFarthing
IPC分类号： G01S3/48 , H04L7/00 , H04B7/06 , G01S3/18 , H04L25/02 , H04W56/00 , H04B7/08 , G01S3/46 , H04B7/0413 , H04L27/00 , H04B7/10
摘要： A method for determining an angle of arrival (AOA) of a received signal is disclosed, comprising: generating a baseband information signal by mixing a received signal with a local oscillator (LO) signal, the received signal being an in-phase signal and quadrature signal uncorrelated with each other and derived from different input data sets; obtaining baseband signal samples of the baseband information signal having an in-phase signal sample and a quadrature signal sample; determining a transmitter phase offset based on an estimated correlation between the in-phase signal samples and the quadrature signal samples; performing a plurality of phase measurements using a plurality of antennas to obtain a plurality of phase measurements; correcting the plurality of phase measurements based on the transmitter phase offset to produce a plurality of corrected phase measurement; and calculating an AOA of the received signal based on the difference between the plurality of corrected phase measurements.

2. 发明授权

US5300932A Motor vehicle police radar detector for detecting multiple radar sources 失效
标题翻译：用于检测多雷达源的机动车警察雷达检测器
公开(公告)号：US5300932A
公开(公告)日：1994-04-05
申请号：US94759
申请日：1993-07-20
申请人： Michael D. Valentine , Stephen R. Scholl , Clarence R. Groth
发明人： Michael D. Valentine , Stephen R. Scholl , Clarence R. Groth
IPC分类号： G01S3/18 , G01S7/02 , G01S7/04 , G01S7/40
CPC分类号： G01S7/022 , G01S3/18 , G01S7/04
摘要： A police radar signal detector detects and monitors radar signals from up to nine (9) radar sources until a detected radar signal has not been redetected for a given number of detector operations, or spectrum sweeps, or until a detected signal has been displaced by a higher priority radar signal. In the police radar signal detector of the present invention, a user of the detector is advised not only of the presence of detected radar signals, the frequency band of detected radar signals and the relative field strength of the signals but also of the number of different radar signal sources which are transmitting signals toward the user's motor vehicle. The information provided to the user for the frequency band of detected radar signals and the relative field strength of the signals is for the highest priority radar signal detected if more than one signal has been detected and is being monitored by the detector of the present invention. In addition, the directions of radar sources are determined and the user of the detector is advised of the direction or directions, front, side and rear, of origin of radar sources transmitting signals toward the user's motor vehicle. If sources are oriented at more than one direction relative to the user's motor vehicle, an indicator is illuminated to advise the user of all the directions of origin with the indicator for the direction of origin of the highest priority signal being flashed to so advise the user of the detector. Further, since multiple radar signals can be detected, each time a new radar signal is detected, a distinctive memo alarm is activated to alert the user to the presence of a new radar signal source.
摘要翻译：警察雷达信号检测器检测和监测来自多达九（9）个雷达源的雷达信号，直到检测到的雷达信号在给定数量的检测器操作或频谱扫描未被重新检测到，或者直到检测到的信号被一个较高优先级的雷达信号。在本发明的警察雷达信号检测器中，检测器的用户不仅被建议不仅存在检测到的雷达信号，检测到的雷达信号的频带以及信号的相对场强，而且还建议不同的雷达信号的数量向用户的机动车辆发送信号的雷达信号源。为检测到的雷达信号的频带提供给用户的信息以及信号的相对场强是对于如果已经检测到多于一个信号并被本发明的检测器监测的检测到的最高优先雷达信号。另外，确定雷达源的方向，并向用户的机动车辆通知向雷达信号的原点的方向或方向，前方，后方检测器的用户。如果源相对于用户的机动车辆定向在多于一个方向上，则指示器被照亮以向用户通知所有原始方向的指示符，用于指示最高优先级信号的原点方向被闪烁，以便建议用户的检测器。此外，由于可以检测到多个雷达信号，所以每当检测到新的雷达信号时，启动独特的备忘录报警以提醒用户存在新的雷达信号源。

3. 发明授权

US5206651A Motor vehicle police radar detector for detecting multiple radar sources 失效
标题翻译：用于检测多雷达源的机动车警察雷达检测器
公开(公告)号：US5206651A
公开(公告)日：1993-04-27
申请号：US891715
申请日：1992-06-01
申请人： Michael D. Valentine , Stephen R. Scholl , Clarence R. Groth
发明人： Michael D. Valentine , Stephen R. Scholl , Clarence R. Groth
IPC分类号： G01S3/18 , G01S7/02
CPC分类号： G01S7/022 , G01S3/18
摘要： A police radar signal detector detects and monitors radar signals from up to nine (9) radar sources until a detected radar signal has not been redetected for a given number of detector operations, or spectrum sweeps, or until a detected signal has been displaced by a higher priority radar signal. In the police radar signal detector of the present invention, a user of the detector is advised not only of the presence of detected radar signals, the frequency band of detected radar signals and the relative field strength of the signals but also of the number of different radar signal sources which are transmitting signals toward the user's motor vehicle. The information provided to the user for the frequency band of detected radar signals and the relative field strength of the signals is for the highest priority radar signal detected if more than one signal has been detected and is being monitored by the detector of the present invention. In addition, the directions of radar sources are determined and the user of the detector is advised of the direction or directions, front, side and rear, of origin of radar sources transmitting signals toward the user's motor vehicle. If sources are oriented at more than one direction relative to the user's motor vehicle, an indicator is illuminated to advise the user of all the directions of origin with the indicator for the direction of origin of the highest priority signal being flashed to so advise the user of the detector. Further, since multiple radar signals can be detected, each time a new radar signal is detected, a distinctive memo alarm is activated to alert the user to the presence of a new radar signal source.
摘要翻译：警察雷达信号检测器检测和监测来自多达九（9）个雷达源的雷达信号，直到检测到的雷达信号在给定数量的检测器操作或频谱扫描未被重新检测到，或者直到检测到的信号被一个较高优先级的雷达信号。在本发明的警察雷达信号检测器中，检测器的用户不仅被建议不仅存在检测到的雷达信号，检测到的雷达信号的频带以及信号的相对场强，而且还建议不同的雷达信号的数量向用户的机动车辆发送信号的雷达信号源。为检测到的雷达信号的频带提供给用户的信息以及信号的相对场强是对于如果已经检测到多于一个信号并被本发明的检测器监测的检测到的最高优先雷达信号。另外，确定雷达源的方向，并向用户的机动车辆通知向雷达信号的原点的方向或方向，前方，后方检测器的用户。如果源相对于用户的机动车辆定向在多于一个方向上，则指示器被照亮以向用户通知所有原始方向的指示符，用于指示最高优先级信号的原点方向被闪烁，以便建议用户的检测器。此外，由于可以检测到多个雷达信号，所以每当检测到新的雷达信号时，启动独特的备忘录报警以提醒用户存在新的雷达信号源。

4. 发明授权

US10670686B2 Position specifying device, transmitter, and non-transitory recording medium 审中-公开
公开(公告)号：US10670686B2
公开(公告)日：2020-06-02
申请号：US16164912
申请日：2018-10-19
申请人： NTT TechnoCross Corporation
发明人： Nobuyuki Akanoma , Yasuyuki Takahata , Kazuo Fukaya
IPC分类号： G01S3/28 , G01S3/18 , G01S5/02 , H04M11/00
摘要： A position specifying device communicable with a transmitter supporting Bluetooth Low Energy (BLE) is provided. The position specifying device includes: a signal receiving unit configured, by using multiple antennas each having different directivity, to receive BLE radio signals transmitted from the transmitter and to measure respective receiving strengths of the BLE radio signals; and a specifying unit configured to specify a position of the transmitter by comparing the respective receiving strengths measured via each of the multiple antennas.

5. 发明授权

US09678213B2 Data collection device and method for the localisation of a source of interference 有权
公开(公告)号：US09678213B2
公开(公告)日：2017-06-13
申请号：US14170309
申请日：2014-01-31
申请人： EUTELSAT S A
发明人： Alessandro Le Pera , Hector Fenech , Sonya Amos
IPC分类号： G01S19/21 , G01S3/18 , G01S3/30 , G01S5/04 , G01S19/00
CPC分类号： G01S19/21 , G01S3/18 , G01S3/30 , G01S5/04
摘要： A data collection device carried on board a satellite and making it possible to localize a source of interference, without using neighboring satellites, comprises: a reception device able to receive the frequency on the ground of the interference; at least three antenna points arranged on the satellite so as to be able to receive a radiofrequency signal coming from the target surface; a processor able to determine the amplitude of the interference signal at the level of each of the antenna points; a connection device able to connect successively each of the antenna points to the processor.

6. 发明授权

US5757307A Radar system for detecting distance, mutual speed and azimuth of a target obstacle 失效
标题翻译：用于检测目标障碍物的距离，相互速度和方位的雷达系统
公开(公告)号：US5757307A
公开(公告)日：1998-05-26
申请号：US721453
申请日：1996-09-27
申请人： Hiroto Nakatani , Hiroshi Mizuno , Hiroshi Hazumi , Akihisa Fujita , Hiroshi Naganawa , Kunihiko Sasaki
发明人： Hiroto Nakatani , Hiroshi Mizuno , Hiroshi Hazumi , Akihisa Fujita , Hiroshi Naganawa , Kunihiko Sasaki
IPC分类号： G01S3/18 , G01S7/02 , G01S7/288 , G01S13/34 , G01S13/42 , G01S13/44 , G01S13/50 , G01S13/58 , G01S13/87 , G01S13/93
CPC分类号： G01S13/931 , G01S13/42 , G01S13/34 , G01S13/44 , G01S13/583 , G01S13/87 , G01S2007/2883 , G01S2013/9375
摘要： Receivers 14 and 16 comprise mixers 14b and 16b for mixing reception signals of receiver antennas 14a and 16a with a transmission signal to generate beat signals B1 and B2, respectively. Signal processing section 20 performs the Fourier transformation of beat signals B1 and B2 supplied from receivers 14 and 16 to obtain the phases of beat signals B1 and B2 and then obtain the azimuth based on the difference of these phases.
摘要翻译：接收器14和16包括用于将接收机天线14a和16a的接收信号与传输信号混合以分别产生拍频信号B1和B2的混频器14b和16b。信号处理部分20执行从接收机14和16提供的拍频信号B1和B2的傅里叶变换，以获得拍频信号B1和B2的相位，然后基于这些相位的差异获得方位角。

7. 发明授权

US5250951A Motor vehicle police radar detector for detecting multiple radar sources 失效
公开(公告)号：US5250951A
公开(公告)日：1993-10-05
申请号：US982594
申请日：1992-11-27
申请人： Michael D. Valentine , Stephen R. Scholl , Clarence R. Groth
发明人： Michael D. Valentine , Stephen R. Scholl , Clarence R. Groth
IPC分类号： G01S3/18 , G01S7/02 , G01S7/04 , G01S7/40 , G08B29/00
CPC分类号： G01S7/022 , G01S3/18 , G01S7/04
摘要： A police radar signal detector detects and monitors radar signals from up to nine (9) radar sources until a detected radar signal has not been redetected for a given number of detector operations, or spectrum sweeps, or until a detected signal has been displaced by a higher priority radar signal. In the police radar signal detector of the present invention, a user of the detector is advised not only of the presence of detected radar signals, the frequency band of detected radar signals and the relative field strength of the signals but also of the number of different radar signal sources which are transmitting signals toward the user's motor vehicle. The information provided to the user for the frequency band of detected radar signals and the relative field strength of the signals is for the highest priority radar signal detected if more than one signal has been detected and is being monitored by the detector of the present invention. In addition, the directions of radar sources are determined and the user of the detector is advised of the direction or directions, front, side and rear, of origin of radar sources transmitting signals toward the user's motor vehicle. If sources are oriented at more than one direction relative to the user's motor vehicle, an indicator is illuminated to advise the user of all the directions of origin with the indicator for the direction of origin of the highest priority signal being flashed to so advise the user of the detector. Further, since multiple radar signals can be detected, each time a new radar signal is detected, a distinctive memo alarm is activated to alert the user to the presence of a new radar signal source.

8. 发明授权

US3680123A Luneberg lens ecm apparatus 失效
标题翻译： LUNEBERG镜头ECM设备
公开(公告)号：US3680123A
公开(公告)日：1972-07-25
申请号：US3680123D
申请日：1970-10-09
申请人： US NAVY
发明人： BRYANT MARION B , HUNT BARRY R
IPC分类号： G01S1/02 , G01S19/14 , H01Q19/06 , H01Q25/00 , H03J7/32 , G01S3/18
CPC分类号： H03J7/32 , G01S1/02 , H01Q19/062 , H01Q25/007
摘要： A Luneberg lens antenna system for ECM applications. A cylindrical Luneberg lens of suitable dimensions is rigidly mounted between a pair of juxtaposed, parallel conducting plates. A selectively predetermined number of feed-horns are mounted and disposed independently of the lens about the periphery of the lens and in close proximity thereto. The antenna system can be combined with an IFM (Instantaneous Frequency Measurement) receiver to provide instantaneous reception of signals and precise and accurate direction-finding of signals over 360* azimuth. The antenna system also features high-gain, narrow beamwidths, low sidelobes, and acceptance of multiple signal polarizations.
摘要翻译：用于ECM应用的Luneberg透镜天线系统。具有合适尺寸的圆柱形Luneberg透镜刚性地安装在一对并置的平行导电板之间。选择性地预定数量的馈送喇叭被安装和独立于透镜围绕透镜的周边并且紧邻其设置。天线系统可以与IFM（瞬时频率测量）接收器组合，以提供信号的瞬时接收以及在360°方位角上精确和精确地测量信号的方向。天线系统还具有高增益，窄波束宽度，低旁瓣和多信号偏振接收。

9. 发明授权

US10976401B2 Method for determining features of an electromagnetic wave 有权
公开(公告)号：US10976401B2
公开(公告)日：2021-04-13
申请号：US15764121
申请日：2016-09-27
申请人： THALES
发明人： Jean-Michel Quellec , Daniel Christien , Daniel Jahan
IPC分类号： G01S3/02 , G01S3/18 , G01S3/04 , G01S3/28 , G01R29/08
摘要： The invention relates to a method for determining features of an electromagnetic wave received by a reception system (22), the reception system (22) comprising at least two reception channels (13), each reception channel (13) comprising an antenna (21) and a reception chain (14), each reception chain (14) being capable of delivering a value representative of the power delivered by the corresponding antenna (21) after reception of the wave by the reception system (22), the features comprising at least the direction of arrival of the received wave, the method comprising a step of providing a measurement vector, the method further comprising the following steps: comparing the measurement vector to calibration vectors, and determining features of the received wave from the result of the comparison.

10. 发明申请

US20190320400A1 RF Carrier Synchronization and Phase Alignment Methods and Systems 审中-公开
公开(公告)号：US20190320400A1
公开(公告)日：2019-10-17
申请号：US16423952
申请日：2019-05-28
申请人： PhasorLab, Inc.
发明人： Joshua C. Park
IPC分类号： H04W56/00 , H04L27/00 , H04L27/36 , G01S3/18 , H04B7/0413 , H04L7/00 , H04L25/02 , H04W64/00
摘要： A method is disclosed for synchronization, comprising obtaining baseband signal samples of a baseband information signal having an in-phase signal sample and a quadrature signal sample, the baseband information signal having been generated by mixing a received modulated carrier signal with a local oscillator (LO) signal having an LO frequency, the modulated carrier signal being an in-phase signal and quadrature signal having a substantially uncorrelated nature and derived from different input data sets; determining an offset frequency rotation based on an estimated residual correlation between the in-phase signal samples and the quadrature signal samples; and, deriving synchronization information from the offset frequency rotation, wherein the received modulated carrier signal is a quadrature-modulated signal with arbitrary orthogonal in-phase and quadrature signal components.

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