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41. 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.

42. 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.

43. 发明申请

US20170074963A1 RADIOWAVE MONITORING DEVICE 审中-公开
标题翻译：无线监控设备
公开(公告)号：US20170074963A1
公开(公告)日：2017-03-16
申请号：US15308873
申请日：2015-05-29
申请人： MITSUBISHI ELECTRIC CORPORATION
发明人： Hideyuki FURUHASHI , Hiroaki TSUKAGOSHI
IPC分类号： G01S3/48
摘要： An array antenna includes a plurality of antennas capturing a coming radio wave and outputting a received signal respectively. An A-D converter converts the received signal to a digital signal, and a frequency detector detects a frequency of the received signal. A sparse signal processor calculates complex amplitudes, which are coefficients for base vectors, each of the base vectors expressing phases of the antennas of the array antenna receiving a radio wave coming from each direction in determined directions, used in expressing the received signal as a linear sum of a finite number of the base vectors, separates the received signal into direction signals for each direction, and calculates the phase of the each of the direction signals. A signal synthesizer aligns the phases of the direction signals using phase differences calculated from phases of the complex amplitudes, and synthesizes the direction signals.
摘要翻译：阵列天线包括多个天线，分别捕获未来的无线电波并输出接收的信号。 A-D转换器将接收的信号转换为数字信号，频率检测器检测接收信号的频率。稀疏信号处理器计算复数幅度，它是基矢量的系数，每个基矢量表示阵列天线的天线接收来自确定方向上的每个方向的无线电波的相位，用于将接收信号表示为线性有限数量的基矢量的和，将接收的信号分离为每个方向的方向信号，并且计算每个方向信号的相位。信号合成器使用从复振幅的相位计算的相位差来对齐方向信号的相位，并且合成方向信号。

44. 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。

45. 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。

46. 发明授权

US09000970B2 Arrangement to measure the deflection of an object 有权
标题翻译：用于测量物体偏转的布置
公开(公告)号：US09000970B2
公开(公告)日：2015-04-07
申请号：US13362042
申请日：2012-01-31
申请人： Jimmi Andersen , Per Egedal , Henrik Stiesdal , Andreas Ziroff
发明人： Jimmi Andersen , Per Egedal , Henrik Stiesdal , Andreas Ziroff
IPC分类号： H01Q15/00 , G01B15/06 , G01S3/48 , G01S13/42 , G01S13/88 , G01S13/75
CPC分类号： G01B15/06 , G01S3/48 , G01S13/42 , G01S13/75 , G01S13/88
摘要： A reflector is arranged at a first position, which is assigned to a first end of the object. An antenna-system is arranged at a second position, which is assigned to a second end of the object. The antenna system contains a transmit antenna and a receive antenna, while the reflector and the antenna-system are coupled by a radio signal. The radio signal is sent from the transmit antenna via the reflector towards the receive antenna. The receive antenna is connected with an evaluation unit, which is prepared to measure the deflection between the first end of the object and the second end of the object based on the received radio signal.
摘要翻译：反射器被布置在第一位置，其被分配给物体的第一端。天线系统被布置在第二位置，其被分配给对象的第二端。天线系统包含发射天线和接收天线，而反射器和天线系统通过无线电信号耦合。无线电信号通过反射器从发射天线发射到接收天线。接收天线与评估单元连接，评估单元准备用于基于所接收的无线电信号来测量对象的第一端和对象的第二端之间的偏移。

47. 发明申请

US20140118192A1 SYSTEMS AND METHODS FOR IMPROVING BEARING AVAILABILITY AND ACCURACY 有权
标题翻译：改善轴承可用性和精度的系统和方法
公开(公告)号：US20140118192A1
公开(公告)日：2014-05-01
申请号：US13661065
申请日：2012-10-26
申请人： HONEYWELL INTERNATIONAL INC.
发明人： Eduard Shestak , Ruy C. Brandao
IPC分类号： G01S3/48
CPC分类号： G01S13/9303 , G01S3/48
摘要： Systems and methods for improving bearing initialization for a pair of two-element antennas. An exemplary system includes two-element antennas mounted on the bottom and top of an aircraft fuselage, an output device, and a processing device. The processing device receives phase-difference information based on phase of signals received at each element of a two-element antenna, determines if the received phase-difference information is within a predefined low-confidence region, and initializes bearing if the phase-difference information is not within the low-confidence region or the phase-difference information from a predefined number of consecutively received signals meets a predefined consistency requirement.
摘要翻译：用于改善一对双元件天线的轴承初始化的系统和方法。一个示例性系统包括安装在飞行器机身的底部和顶部的两元件天线，输出装置和处理装置。处理装置基于在两元件天线的每个元件处接收的信号的相位接收相位差信息，确定接收的相位差信息是否在预定的低置信区间内，如果相位差信息不在低置信区域内，或者来自预定数量的连续接收信号的相位差信息满足预定义的一致性要求。

48. 发明申请

US20130207844A1 HYBRID DIRECTION IDENTIFYING APPARATUS AND METHOD 有权
标题翻译：混合方向识别装置和方法
公开(公告)号：US20130207844A1
公开(公告)日：2013-08-15
申请号：US13766004
申请日：2013-02-13
申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
发明人： Jeom Hun LEE , In One JOO , Myung Soon KIM , Cheon Sig SIN , Sang Uk LEE
IPC分类号： G01S3/48
CPC分类号： G01S3/48 , G01S3/58 , G01S5/04 , G01S5/14
摘要： A hybrid direction apparatus and method that rapidly and accurately detects a direction of a radio signal source based on a direction detecting scheme by comparing an amplitude or signal strength, a virtual Doppler scheme, a phase difference comparison scheme while removing an ambiguity based on an amplitude or signal strength scheme, and identify a direction relatively precisely based on a phase difference scheme using only two antennas. Also, an arrival direction of a relative radio wave when an arrival direction of a radio wave is vertical to a single rotating axis may be precisely identified by mounting a directional antenna and a phase comparison antenna on the single rotating axis, and rotating the two antennas.
摘要翻译：一种混合方向装置和方法，其通过比较幅度或信号强度，虚拟多普勒方案，相位差比较方案，基于方向检测方案快速准确地检测无线电信号源的方向，同时基于振幅消除模糊度或信号强度方案，并且基于仅使用两个天线的相位差方案来相对精确地识别方向。此外，通过在单个旋转轴上安装定向天线和相位比较天线，可以精确地识别当无线电波的到达方向垂直于单个旋转轴时的相对无线电波的到达方向，并且旋转两个天线。

49. 发明申请

US20050156780A1 Methods and apparatus for automotive radar sensors 审中-公开
标题翻译：汽车雷达传感器的方法和装置
公开(公告)号：US20050156780A1
公开(公告)日：2005-07-21
申请号：US11036318
申请日：2005-01-14
申请人： Andrew Bonthron , Gerald Juskovic
发明人： Andrew Bonthron , Gerald Juskovic
IPC分类号： G01S3/32 , G01S3/48 , G01S13/02 , G01S13/34 , G01S13/44 , G01S13/58 , G01S13/93 , H01Q9/04 , H01Q21/06
CPC分类号： G01S3/48 , G01S3/32 , G01S13/0209 , G01S13/343 , G01S13/347 , G01S13/348 , G01S13/4445 , G01S13/4454 , G01S13/584 , G01S13/931 , G01S2013/9375 , G01S2013/9378 , G01S2013/9385 , H01L2224/0401 , H01L2224/04042 , H01L2224/16227 , H01L2224/32225 , H01L2224/45014 , H01L2224/45124 , H01L2224/45144 , H01L2224/48091 , H01L2224/48227 , H01L2224/73204 , H01L2224/73253 , H01L2224/73265 , H01L2924/00014 , H01L2924/15311 , H01L2924/15313 , H01L2924/16251 , H01Q9/0457 , H01Q21/065 , H01L2924/00012 , H01L2924/00 , H01L2924/206
摘要： Methods and apparatus are presented that reduce the overall system cost for automotive radar sensing applications through reduction of the number of the radar sensors required. In accordance with aspects of the present invention, one way sensor count reduction can be achieved is through the combination of target range, direction, and velocity determination capability with wide angular field of view coverage within a single sensor unit. One embodiment combines a wide field of view antenna means with a wideband/ultra-wideband/precision-ultra-wideband radar transmitter-receiver and an interferometric direction-finding means into a single sensor unit. Other methods and apparatus are presented.
摘要翻译：提出了通过减少所需雷达传感器的数量来降低汽车雷达传感应用的整体系统成本的方法和装置。根据本发明的方面，可以通过在单个传感器单元内将目标范围，方向和速度确定能力与广角视场覆盖的组合来实现单向传感器计数减少。一个实施例将宽视场天线装置与宽带/超宽带/精准超宽带雷达发射机 - 接收机和干涉测向装置组合成单个传感器单元。介绍了其他方法和装置。

50. 发明授权

US06897804B1 Methods and apparatus for determination of a filter center frequency 有权
公开(公告)号：US06897804B1
公开(公告)日：2005-05-24
申请号：US10657971
申请日：2003-09-09
申请人： James R. Hager , Thomas W. Heidemann , Thomas R. Jicha
发明人： James R. Hager , Thomas W. Heidemann , Thomas R. Jicha
IPC分类号： G01S7/285 , G01C21/00 , G01S3/48 , G01S7/292 , G01S13/18 , G01S13/20 , G01S13/28 , G01S13/42 , G01S13/50 , G01S13/524 , G01S13/70 , G01S13/88 , G01S13/94 , G01S13/08
CPC分类号： G01S7/292 , G01C21/005 , G01S3/48 , G01S13/18 , G01S13/20 , G01S13/288 , G01S13/42 , G01S13/524 , G01S13/70 , G01S13/882 , G01S13/94
摘要： A method for calculating a center frequency and a bandwidth for a radar doppler filter is herein described. The center frequency and bandwidth are calculated to provide radar performance over varying terrain and aircraft altitude, pitch, and roll. The method includes receiving an antenna mounting angle, a slant range, and velocity vectors in body coordinates, calculating a range swath doppler velocity, a track and phase swath bandwidth, and a phase swath doppler velocity. The method continues by calculating a range swath center frequency based on the range swath doppler velocity, calculating a phase swath center frequency based on the phase swath doppler velocity, and calculating a level and verify swath bandwidth based upon the track and phase swath bandwidth.

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