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21. 发明申请

US20170184699A1 POSITION SENSOR, DIRECTION ESTIMATION METHOD, AND SYSTEM 审中-公开
公开(公告)号：US20170184699A1
公开(公告)日：2017-06-29
申请号：US15383243
申请日：2016-12-19
申请人： Panasonic Intellectual Property Management Co., Ltd.
发明人： NAOKI HONMA , TAKESHI NAKAYAMA , TAKASHI MORIMOTO
IPC分类号： G01S3/28 , G01S5/02 , G01S3/48
CPC分类号： G01S3/28 , G01S3/043 , G01S3/48 , G01S3/74 , G01S5/0252 , G01S5/0273 , G01S7/415 , G01S13/003 , G01S13/48
摘要： A sensor includes a reception antenna, a parasitic antenna terminating in a variable load, a controller, a transmitter transmitting a transmission signal, a receiver, a memory, and a processor. The controller sets an impedance value of the variable load. The receiver receives a first signal formed of signals received by the antennas and derived from the transmission signal, and the signal received by the parasitic antenna corresponding to the impedance value. The memory stores a first signal strength value of the first signal corresponding to the impedance value. The processor sets candidates of a complex propagation channel, calculates second signal strength values of a second signal respectively corresponding to the candidates, estimates a target complex propagation channel by selecting a candidate corresponding to a minimum difference among differences between the first signal strength value and the second signal strength values, and estimates a direction of arrival of the first signal.

22. 发明授权

US09625562B2 Method for determining a direction to a signal-emitting object 有权
公开(公告)号：US09625562B2
公开(公告)日：2017-04-18
申请号：US14405669
申请日：2012-07-03
申请人： Sven Holte
发明人： Sven Holte
IPC分类号： G01S3/48 , G01S5/04 , G01S5/12 , G01S11/04 , H01Q1/28 , H01Q21/29
CPC分类号： G01S3/48 , G01S5/04 , G01S5/12 , G01S11/04 , H01Q1/287 , H01Q21/29
摘要： The present invention relates to a method for determining a direction to a signal-emitting object by means of a platform comprising at least two antennas separated by a known distance. The method comprises said steps of: receiving, with each of said at least two antennas, a signal from said signal-emitting object at first positions, determining a first phase relation of said signal between said at least two antennas, —receiving, with each of said at least two antennas, a signal from said signal-emitting object at at least second positions, determining at least a second phase relation of said signal between said at least two antennas, characterized by the steps of: determining change(s) in position(s) of at least one antenna of said at least two antennas, and determining a direction to a signal-emitting object based on said first phase relation, said at least second phase relation and said change(s) in position(s) of said at least one antenna. The invention further relates to a platform performing a determination of a direction to a signal-emitting object.

23. 发明授权

US09606213B2 System and method for directionally classifying radio signals 有权
公开(公告)号：US09606213B2
公开(公告)日：2017-03-28
申请号：US14910722
申请日：2014-08-06
申请人： ELBIT SYSTEMS BMD AND LAND EW—ELISRA LTD
发明人： Yehuda Meiman
IPC分类号： G01S3/46 , G01S3/04 , G01S3/48
CPC分类号： G01S3/46 , G01S3/043 , G01S3/48
摘要： A system for directionally classifying of a radio signal originating from an emitter. The system includes a receiving-station, which includes at least two antennas, a single-channel-receiver producing a first and a second received signals and a switch alternately coupling each of the antennas with the single-channel-receiver. The system further includes another receiving-station which includes another receiver, producing another received signal, coupled with a first other antenna. The system further includes directional-classifier which includes a phase-difference-detector, coupled with the single-channel-receiver and with said another receiver. The phase-difference-detector produces a first phase difference measurement when the switch couples one antenna with the single-channel-receiver. The phase-difference-detector further produces a second phase-difference-measurement when the switch couples the other antenna with the single-channel-receiver. The directional classifier subtracts the second phase-difference-measurement from the first-phase-difference measurement producing a phase-difference-estimate. The receiving station and the other receiving station are in relative motion one with respect to the other.

24. 发明授权

US09590740B1 Method and system for robust symmetrical number system photonic direction finding 有权
标题翻译：鲁棒对称数系统光子方向的方法和系统
公开(公告)号：US09590740B1
公开(公告)日：2017-03-07
申请号：US14919346
申请日：2015-10-21
申请人： The United States of America, as represented by the Secretary of the Navy
发明人： Phillip E. Pace , Thomas W. Tedesso , James Calusdian
IPC分类号： H03M1/00 , H04B10/04 , H04B10/54 , H04B10/50
CPC分类号： H04B10/541 , G01S3/48 , H01Q3/2676 , H04B10/00 , H04B10/503 , H04B2210/006
摘要： A four-element wideband photonic DF system with robust symmetrical number system preprocessing utilizes dual electrode Mach-Zehnder modulators (DE-MZMs) to conduct phase detection for direct wideband direction finding (DF) of RF signals, such as microwave signals, in which the normalized magnitude of the output signal phase detector circuit is equal to |sin(φ/2)| where φ is the phase difference between the plane waves arriving at the reference and measurement antennas of a linear DF array. The method and system allow fine angular resolution using a much smaller array size than is typically required for linear arrays employing super-resolution signal processing techniques.
摘要翻译：具有鲁棒对称数字系统预处理的四元宽带光子DF系统利用双电极马赫 - 曾德调制器（DE-MZM）对RF信号（如微波信号）的直接宽带方向发现（DF）进行相位检测，其中输出信号相位检测电路的归一化幅度等于| sin（φ/ 2）| 其中φ是到达参考的平面波与线性DF阵列的测量天线之间的相位差。该方法和系统允许使用比通常使用超分辨率信号处理技术的线性阵列通常需要的小得多的阵列尺寸的精细角度分辨率。

25. 发明申请

US20160327686A1 INTERFEROMETRIC RADIO OCCULTATION 审中-公开
标题翻译：干涉无线电教学
公开(公告)号：US20160327686A1
公开(公告)日：2016-11-10
申请号：US15148906
申请日：2016-05-06
申请人： European Space Agency
发明人： Manuel Martin-Neira
IPC分类号： G01W1/08 , G01S19/14
CPC分类号： G01W1/08 , G01S3/46 , G01S3/48 , G01S19/14 , G01W1/00
摘要： A method of performing radio occultation for inferring physical properties of a portion of atmosphere includes receiving, at a receiver, a first signal from a satellite at a first timing; receiving, at the receiver, a second signal from the satellite at a second timing different from the first timing; correlating the first signal with the second signal; and determining a first quantity indicative of a path delay between the first signal and the second signal resulting from at least one of the first signal and the second signal having passed through the portion of atmosphere between transmission by the satellite and reception at the receiver, based on a result of the correlation. The application further relates to a system for performing radio occultation for inferring physical properties of a portion of atmosphere.
摘要翻译：用于推断大气的一部分的物理性质的无线电掩蔽的方法包括：在接收机处，在第一定时从卫星接收第一信号; 在接收机处以不同于第一定时的第二定时从卫星接收第二信号; 将第一信号与第二信号相关; 并且基于所述第一信号和所述第二信号之间的路径延迟确定第一信号和所述第二信号之间的路径延迟，所述第一信号和所述第二信号是由所述第一信号和所述第二信号中的至少一个信号，所述第一信号和所述第二信号已经通过卫星是相关的结果。本申请还涉及一种用于执行无线电掩蔽以推断一部分大气的物理性质的系统。

26. 发明授权

US09482735B2 Microwave radio direction finding system 有权
标题翻译：微波无线电测向系统
公开(公告)号：US09482735B2
公开(公告)日：2016-11-01
申请号：US14023467
申请日：2013-09-11
申请人： KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
发明人： Mohammad S. Sharawi , Rifaqat Hussain
IPC分类号： G01S3/48 , G01S7/03 , G01S7/28 , G01S7/35 , G01S13/44 , H01Q21/06 , H01Q25/02 , G01S3/04 , H01Q9/04
CPC分类号： G01S3/48 , G01S3/043 , G01S7/03 , G01S7/28 , G01S7/35 , G01S13/449 , G01S2007/358 , H01Q9/045 , H01Q21/065 , H01Q25/02
摘要： The microwave radio direction finding system includes two six-port (SP) circuits and 2×2 printed patch antennas, each of the SP circuits having a pair of the patch antennas connected to their inputs, one pair being separated horizontally in a Cartesian plane, the other pair being separated vertically. The output ports are connected to differential amplifiers that produce in-phase and quadrature signals, which are digitized and input to a digital signal processor, which computes the difference in phase for the signals received at each pair of antennas. The processor uses the differences in phase angles to compute both the azimuth and elevation of the received signals, and may do so simultaneously for signals in multiple bands in the microwave region.
摘要翻译：微波无线电测向系统包括两个六端口（SP）电路和2×2个印刷贴片天线，每个SP电路具有一对连接到其输入的贴片天线，一对在笛卡尔平面中水平分离，另一对垂直分隔。输出端口连接到产生同相和正交信号的差分放大器，该信号被数字化并输入到数字信号处理器，该数字信号处理器计算在每对天线处接收的信号的相位差。处理器使用相位角的差异来计算接收信号的方位角和高程，并且可以同时对微波区域中的多个频带中的信号进行此操作。

27. 发明授权

US09445237B1 First arrival path based multipath mitigation for angle of arrival estimation 有权
标题翻译：基于到达路径的第一个到达路径减轻估计角度
公开(公告)号：US09445237B1
公开(公告)日：2016-09-13
申请号：US14644613
申请日：2015-03-11
申请人： QUALCOMM Incorporated
发明人： Venkatesan Nallampatti Ekambaram , Vasuki Narasimha Swamy , Jubin Jose , Xinzhou Wu
IPC分类号： H04W4/02
CPC分类号： H04W4/023 , G01S3/043 , G01S3/48
摘要： A system and method are disclosed that may provide an accurate estimate of the angle of arrival (AoA) of a wireless signal received by a device. The received wireless signal may include a plurality of signal components associated with a number of different arrival paths. The device may generate a weighted signal, including a plurality of weighted signal components, by multiplying the plurality of signal components of the received wireless signal with a set of weighting values. The device may identify one or more of the weighted signal components associated with a first arrival path to the device, determine phase information of the one or more identified weighted signal components, and then determine the angle of arrival based, at least in part, on the determined phase information.
摘要翻译：公开了可以提供由设备接收的无线信号的到达角（AoA）的精确估计的系统和方法。所接收的无线信号可以包括与多个不同到达路径相关联的多个信号分量。该装置可以通过将接收到的无线信号的多个信号分量与一组加权值相乘来产生包括多个加权信号分量的加权信号。设备可以识别与到设备的第一到达路径相关联的一个或多个加权信号分量，确定一个或多个识别的加权信号分量的相位信息，然后至少部分地基于确定的相位信息。

28. 发明申请

US20160021505A1 METHOD FOR THE CORRECTION OF AN INFLUENCE TO A DISTANCE MEASUREMENT BETWEEN TWO OBJECTS 有权
标题翻译：对两个对象之间的距离测量的影响的校正方法
公开(公告)号：US20160021505A1
公开(公告)日：2016-01-21
申请号：US14832314
申请日：2015-08-21
申请人： LAMBDA:4 ENTWICKLUNGEN GMBH
发明人： Rönne Reimann
IPC分类号： H04W4/02 , G01S17/74 , H04W4/22
CPC分类号： G01S5/10 , G01S3/143 , G01S3/48 , G01S5/0247 , G01S5/0252 , G01S7/35 , G01S11/02 , G01S11/026 , G01S11/10 , G01S13/84 , G01S17/74 , H04W4/023 , H04W4/026 , H04W4/90
摘要： A method, device, system and use for determining a distance, location and/or orientation including the at least relative determination of a position of at least one object using at least two active anchors. A first signal is emitted by a first of the two anchors and is received at the object and by a second of said two anchors. A phase measurement is performed at said second anchor and wherein a distance determination with respect to said first anchor is performed and/or the distance from said first anchor to said second anchor is known. A second, particularly electromagnetic, signal is emitted from said second anchor, and information on phase measurement and distance between said first and second anchors is made available to a computation unit and at least one phase measurement respectively of said first and second signal is performed at said object and made available to said computation unit.
摘要翻译：一种用于确定距离，位置和/或取向的方法，装置，系统和用途，包括至少使用至少两个主动锚的至少一个物体的位置的至少相对确定。第一信号由两个锚中的第一个发射并且被接收在物体处，并且被所述两个锚的第二信号接收。在所述第二锚固件处执行相位测量，并且其中执行相对于所述第一锚定器的距离确定和/或从所述第一锚定器到所述第二锚定件的距离是已知的。第二，特别是电磁信号从所述第二锚点发射，并且关于相位测量的信息和所述第一和第二锚定器之间的距离使得可用于计算单元，并且分别对所述第一和第二信号进行至少一个相位测量，所述对象并且可用于所述计算单元。

29. 发明申请

US20150234030A1 ANALOG SIGNAL PROCESSING METHOD FOR ACCURATE SINGLE ANTENNA DIRECTION FINDING 有权
标题翻译：用于精确单向天线方向寻找的模拟信号处理方法
公开(公告)号：US20150234030A1
公开(公告)日：2015-08-20
申请号：US14182505
申请日：2014-02-18
申请人： Raytheon Company
发明人： Harry Marr , Walter B. Schulte, JR. , John P. Gianvittorio
IPC分类号： G01S3/14
CPC分类号： G01S3/14 , G01S3/043 , G01S3/46 , G01S3/465 , G01S3/48 , G01S3/808
摘要： Embodiments are directed to receiving an incoming signal, converting, by an analog circuit, the signal to a discrete time signal, applying, by the analog circuit, a transformation algorithm to the discrete time signal to obtain frequency samples of the discrete time signal, applying, by the analog circuit, a cross correlation algorithm to the frequency samples to obtain a cross spectral density (CSD), detecting, by the analog circuit, phase slopes associated with the CSD, and calculating an angle of arrival (AoA) of the incoming signal based on the phase slopes.
摘要翻译：实施例旨在接收输入信号，通过模拟电路将信号转换为离散时间信号，由模拟电路将变换算法应用于离散时间信号，以获得离散时间信号的频率采样，应用通过模拟电路，对频率样本进行交叉相关算法以获得交叉频谱密度（CSD），由模拟电路检测与CSD相关联的相位斜率，并计算输入的到达角（AoA）信号基于相位斜率。

30. 发明授权

US09100113B2 Auto-heterodyne receiver 有权
标题翻译：自动外差接收机
公开(公告)号：US09100113B2
公开(公告)日：2015-08-04
申请号：US14114452
申请日：2012-04-25
申请人： Silvio Kühn , Roland Gesche
发明人： Silvio Kühn , Roland Gesche
IPC分类号： H04B17/00 , G01S5/04 , H04B17/21 , G01S3/48 , G01S3/46
CPC分类号： H04B17/21 , G01S3/46 , G01S3/48
摘要： A receiver with a local oscillator, a quadrature modulator, a first mixer and a second mixer, wherein a first input of the quadrature modulator is connected to a second signal input of the receiver circuit and a second input of the quadrature modulator is connected to the local oscillator. Further, a first input of the first mixer is connected to a first signal input of the receiver circuit, a second input of the first mixer is connected to an output of the quadrature modulator, and an output of the first mixer is connected to a first signal output of the receiver circuit. A first input of the second mixer is connected to the second signal input, a second input of the second mixer is connected to the output of the quadrature modulator, and an output of the second mixer is connected to a second signal output of the receiver circuit.
摘要翻译：具有本地振荡器，正交调制器，第一混频器和第二混频器的接收机，其中正交调制器的第一输入端连接到接收机电路的第二信号输入端，正交调制器的第二输入端连接到本地振荡器。此外，第一混频器的第一输入连接到接收器电路的第一信号输入端，第一混频器的第二输入端连接到正交调制器的输出，第一混频器的输出端连接到第一混频器的第一输入端接收机电路的信号输出。第二混频器的第一输入连接到第二信号输入端，第二混频器的第二输入端连接到正交调制器的输出，第二混频器的输出端连接到接收器电路的第二信号输出端。

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