公开(公告)号：WO2021247959A1

公开(公告)日：2021-12-09

申请号：PCT/US2021/035837

申请日：2021-06-04

申请人： QUALCOMM INCORPORATED

发明人： AKKARAKARAN, Sony ,  LUO, Tao ,  BAO, Jingchao ,  MANOLAKOS, Alexandros ,  MONTOJO, Juan

IPC分类号： H04W24/08 ,  H04W48/16 ,  H04W64/00 ,  G01S3/38 ,  H04B7/0617 ,  H04B7/0695 ,  H04L5/0048 ,  H04W64/006

摘要： Frequency-dependent changes in beam shapes of transmitted RF signals can be provided to a receiving device. Beam shape information can include, for example, gain of a beam and a plurality of azimuth and elevation directions, boresight and width of a main lobe (and optionally side lobes) of the beam, information regarding a pattern of antenna elements of an antenna panel used to transmit the beam, and/or similar information. The type of information provided can dictate the amount of overhead required, and we therefore vary depending on the means by which the information is conveyed. Additional detail is provided in the embodiments described herein.

公开(公告)号：WO2021091409A1

公开(公告)日：2021-05-14

申请号：PCT/QA2020/050014

申请日：2020-11-05

申请人： QATAR FOUNDATION FOR EDUCATION, SCIENCE AND COMMUNITY DEVELOPMENT

发明人： DARWISH, Ahmad ,  KHALIL, Shady S. ,  ABU-RUB, Haitham ,  TOLIYAT, Hamid

IPC分类号： G01S3/38 ,  G01S3/06 ,  H01Q1/38 ,  H01Q3/24

摘要： An antenna and a detecting device are provided. The antenna includes a ground plane, a pole and a microstrip line. The detecting device includes an oscilloscope and the antenna that is connected with the oscilloscope.

公开(公告)号：WO2018099970A1

公开(公告)日：2018-06-07

申请号：PCT/EP2017/080823

申请日：2017-11-29

申请人： QUADSAT IVS

发明人： ESPELAND, Joakim ,  BUCHI, Adrian

IPC分类号： G01S3/02 ,  G01S3/38 ,  G01S7/40 ,  H01Q1/34 ,  H01Q3/00 ,  H04B17/27 ,  H04B17/11 ,  H04B17/21 ,  H04B7/185

摘要： The present invention relates to a method for testing the accuracy of the automatic positioning means of a signal tracking antenna during a satellite signal searching and/or tracking operation; wherein the platform, such as a ship, on which the signal tracking antenna is mounted is kept stationary during the testing operation. The method includes the use of an unmanned aerial vehicle and a control station.

公开(公告)号：WO2022164506A1

公开(公告)日：2022-08-04

申请号：PCT/US2021/061236

申请日：2021-11-30

申请人： QUALCOMM INCORPORATED

发明人： CHOI, Chang-Sik ,  GULATI, Kapil ,  LI, Junyi

IPC分类号： G01S3/38 ,  G01S5/02 ,  G01S13/86 ,  G01S15/86 ,  G01S17/86

摘要： A UE includes: a wireless transceiver; a directional, reflection-based ranging system configured to determine directions and distances between the UE and reflectors; and a processor configured to: obtain, from the ranging system (1) a first direction, between the UE and a particular reflector, and (2) a first distance, between the UE and the particular reflector, corresponding to the first direction; determine, based on a positioning reference signal (PRS) received by the wireless transceiver from a PRS source (3) a second direction, corresponding to an angle of arrival of the PRS at the UE, and (4) a second distance, traveled by the PRS from the PRS source to the UE, corresponding to the second direction; and determine whether the second distance is a line-of-sight distance between the UE and the PRS source based on the first direction, the first distance, the second direction, and the second distance.

公开(公告)号：WO2021140451A1

公开(公告)日：2021-07-15

申请号：PCT/IB2021/050078

申请日：2021-01-06

申请人： ISOTROPIC SYSTEMS LTD

发明人： TURPIN, Jeremiah P. ,  BILLMAN, Brian ,  FINNEY, John

IPC分类号： G01S3/38 ,  G01S3/74 ,  G01S19/258 ,  G01S19/31 ,  G01S19/49 ,  H01Q3/34

摘要： A ground antenna determines the current time and its own position from received signals that were transmitted by artificial earth satellites for communication. A high-gain multi- beam electrically-steered antenna is combined with a processing system to measure the angles between two or more satellites and determine the present distance to each satellite by the information broadcast on the TT&C channel. The knowledge of the angles and distances, as well as the trajectory of the satellites, can be combined with their locations as predicted by the satellite ephemeris data to triangulate the location of the receiver. This system is different from conventional GPS antennas because it does not require the cooperation of active communication with the satellites to derive a location estimate. The location is computed by the ground terminal, not by the satellite. This system can be used in cases where other locating services are offline, jammed, or otherwise unavailable to maintain location and time synchronization.

公开(公告)号：WO2012036896A1

公开(公告)日：2012-03-22

申请号：PCT/US2011/049837

申请日：2011-08-31

申请人： RAYTHEON COMPANY ,  KULLSTAM, Johan, A. ,  DORSCHNER, Terry A.

发明人： KULLSTAM, Johan, A. ,  DORSCHNER, Terry A.

IPC分类号： H01Q1/12 ,  H01Q3/02 ,  H01Q3/26 ,  H01Q1/28 ,  H01Q5/00 ,  G01S3/38 ,  H04B10/105

CPC分类号： H01Q3/02 ,  G01S3/38 ,  H01Q1/1257 ,  H01Q3/26 ,  H01Q5/22 ,  H01Q21/28 ,  H04B10/118

摘要： A system for tracking a target includes a dual-band antenna. The dual-band antenna includes a first antenna and a second antenna rigidly coupled to the first antenna. The first antenna is configured to communicate within a first frequency band and the second antenna is configured to communicate within a second frequency band. The system further includes a processing system configured to initialize a pointing direction to point a beam of the first antenna toward the target with a first degree of pointing accuracy, and configured to scan with the first antenna to point the beam of the first antenna more precisely toward the target with a second degree of pointing accuracy.

摘要翻译： 用于跟踪目标的系统包括双频天线。 双频带天线包括刚性耦合到第一天线的第一天线和第二天线。 第一天线被配置为在第一频带内通信，并且第二天线被配置为在第二频带内进行通信。 该系统还包括处理系统，其被配置为初始化指向方向以将第一天线的波束以第一指向精度指向目标，并且被配置为利用第一天线进行扫描以更精确地指向第一天线的波束 朝向具有第二度指向精度的目标。

公开(公告)号：WO02015324A2

公开(公告)日：2002-02-21

申请号：PCT/US2001/022337

申请日：2001-07-17

IPC分类号： G01S3/38 ,  H01Q1/12 ,  H01Q3/08 ,  H01Q19/13

CPC分类号： H01Q19/19 ,  G01S3/38 ,  H01Q1/1257 ,  H01Q3/08 ,  H01Q19/132

摘要： An antenna pointing system automatically aligns an antenna with a geo-synchronous satellite using a Ku band signal, which has a relatively broad bandwidth, with sufficient accuracy for Ka band signal transmission, which has a relatively narrow bandwidth. Initially, the antenna is pointed at the selected satellite so as to receive the Ku band signal. The system obtains a series of signal strength readings over a predetermined azimuth (or elevation) region, such as plus/minus two degrees, from which a new peak location is selected. Signal strength data is then obtained over a predetermined elevation (or azimuth) region. Another signal peak location is selected based on the elevation data. Azimuth and elevation data are alternately collected for refining the peak of the Ku signal so as to optimize Ka signal transmission capability.

摘要翻译： 天线指向系统使用具有相对宽的带宽的Ku波段信号自动对准天线与地球同步卫星，对于具有相对较窄带宽的Ka波段信号传输具有足够的精度。 最初，天线指向所选择的卫星，以便接收Ku波段信号。 该系统在预定的方位角（或高度）区域上获得一系列信号强度读数，例如正/负两度，从中选择新的峰值位置。 然后在预定的高度（或方位））区域获得信号强度数据。 基于高程数据选择另一个信号峰值位置。 交替收集方位角和高程数据，以便优化Ku信号的峰值，从而优化Ka信号传输能力。

公开(公告)号：WO01095240A2

公开(公告)日：2001-12-13

申请号：PCT/US2001/040828

申请日：2001-06-04

IPC分类号： G01S3/46 ,  G01S3/04 ,  G01S3/32 ,  G01S3/38 ,  G01S3/48 ,  G01S13/74 ,  G06K19/07 ,  H04B1/59 ,  G06K

CPC分类号： G01S3/48 ,  G01S3/043 ,  G01S3/38 ,  G06K19/0723

摘要： Methods and systems for determining the direction to a transponder are disclosed. The methods and systems include transmitting a first signal to an area where communications with a transponder is desired; producing a second signal desired from the first signal; receiving the second signal via a first and second antenna forming a difference signal from the second signal received via the first and second antennas; forming a third signal by adding the second signal received via the first antenna and the second signal received via the third antenna; delaying the difference signal; and comparing a fist polarity of the delayed difference signal with a second polarity of the third signal.

摘要翻译： 公开了确定转发器的方向的方法和系统。 所述方法和系统包括：向期望与应答器进行通信的区域发送第一信号; 从所述第一信号产生期望的第二信号; 经由第一和第二天线经由第一和第二天线从接收的第二信号形成差分信号; 通过添加经由第一天线接收的第二信号和经由第三天线接收的第二信号来形成第三信号; 延迟差分信号; 以及将延迟差信号的第一极性与第三信号的第二极性进行比较。

公开(公告)号：WO2015048998A1

公开(公告)日：2015-04-09

申请号：PCT/EP2013/070617

申请日：2013-10-03

申请人： TELEFONAKTIEBOLAGET L M ERICSSON (publ)

发明人： DERNERYD, Anders

IPC分类号： H01Q3/24 ,  G01S3/38 ,  H01Q3/26 ,  H01Q25/00 ,  H04B17/00

CPC分类号： H01Q3/247 ,  G01S3/38 ,  H01Q3/2605 ,  H01Q25/002 ,  H04B7/0408 ,  H04B7/0608 ,  H04B7/0617 ,  H04B7/0691

摘要： The present invention relates to a node (1) in a wireless communication network (2). The node (1) comprises an antenna arrangement (3) which in turn comprises an array antenna (4). The array antenna comprises a first set of antenna elements (5) forming a first antenna aperture (6), and a second set of antenna elements (7) forming a second antenna aperture (8). The antenna arrangement (3) further comprises a switching arrangement (22) that is adapted to switch between a first mode of operation (M1) and a second mode of operation (M2). In the first mode of operation, the first antenna aperture (6) is arranged to generate a first antenna beam (9). In the second mode of operation, the first antenna aperture (6) and the second antenna aperture (8) are combined and arranged to generate a second antenna beam (10), the first antenna beam (9) having a wider antenna beamwidth than the second antenna beam (10). The present invention also relates to a corresponding method.

摘要翻译： 本发明涉及无线通信网络（2）中的节点（1）。 节点（1）包括天线装置（3），天线装置又包括阵列天线（4）。 阵列天线包括形成第一天线孔径（6）的第一组天线元件（5）和形成第二天线孔径（8）的第二组天线元件（7）。 天线装置（3）还包括适于在第一操作模式（M1）和第二操作模式（M2）之间切换的开关装置（22）。 在第一操作模式中，第一天线孔径（6）被布置成产生第一天线波束（9）。 在第二操作模式中，第一天线孔径（6）和第二天线孔径（8）被组合并布置成产生第二天线波束（10），第一天线波束（9）具有比 第二天线波束（10）。 本发明还涉及相应的方法。

公开(公告)号：WO2014133488A2

公开(公告)日：2014-09-04

申请号：PCT/US2013027831

申请日：2013-02-26

申请人： TELEDYNE TECH INC

发明人： LONGSTAFF IAN DENNIS

IPC分类号： G01S3/38

CPC分类号： G01S13/003 ,  G01S13/325 ,  G01S13/882 ,  G01S13/94 ,  G01S2013/0254

摘要： According to one aspect of the present invention, a radar system is provided which accurately measures the surface profile in a wide sector beneath and forward of a helicopter, to aid low level transit and landing in poor visibility. This uses an electronic beam synthesis technique to form multiple beams directed at the area of interest, each measuring the distance to the first reflected signal received by each beam. These distances represent the profile of the ground and any objects on the ground. A processor then compares the measured profile with the ideal ground profile for safe landing. If the deviations from straight and level exceed the specified requirement for safe landing, or if sufficient rotor clearance is not detected, then a warning is given to the operator. A display will show the measured ground profile highlighting the unsafe regions, allowing the operator to seek a safe region to land. The novelty lies in the way the beams are formed to measure and display the ground profile and provide a warning system. This beam-forming technique is simpler and more cost effective than with a conventional phased array radar.

摘要翻译： 根据本发明的一个方面，提供了一种雷达系统，其精确地测量直升机下方和前方的宽阔区域中的表面轮廓，以帮助在较低的可见度范围内的低水平运输和着陆。 这使用电子束合成技术来形成指向感兴趣区域的多个光束，每个光束测量到由每个光束接收的第一反射信号的距离。 这些距离代表地面和地面上任何物体的轮廓。 然后，处理器将测量的轮廓与理想的地面轮廓进行比较，以便安全着陆。 如果与直线和液位的偏差超过了安全着陆的规定要求，或者如果没有检测到足够的转子间隙，则向操作者发出警告。 显示屏将显示突出显示不安全区域的测量地面图，允许操作员寻求安全区域着陆。 新颖性在于梁的形成方式来测量和显示地面轮廓并提供警告系统。 这种波束成形技术比传统的相控阵雷达更简单并且更具成本效益。