公开(公告)号：US09872136B2

公开(公告)日：2018-01-16

申请号：US14754683

申请日：2015-06-29

申请人： Intel IP Corporation

发明人： Ofer Bar-Shalom ,  Assaf Kasher

IPC分类号： H04W4/02 ,  G01S3/74 ,  G01S3/46 ,  G01S3/72

CPC分类号： H04W4/02 ,  G01S3/46 ,  G01S3/72 ,  G01S3/74

摘要： Described herein are architectures, platforms and methods for implementing a direct estimation of a transmitter's position based upon raw radio frequency (RF) signals that are received by a portable device. A mathematical operation such as a maximum-likelihood estimation (MLE) algorithm, which utilizes collected snapshots from the received raw RF signals as variables, is implemented to perform direct estimation.

公开(公告)号：US09846221B2

公开(公告)日：2017-12-19

申请号：US14650014

申请日：2013-11-29

申请人： THALES

发明人： Jean-François Grandin ,  Laurent Ratton ,  Raphaël Sperling

IPC分类号： G01S5/06 ,  G01S5/12 ,  G01S3/72 ,  G01S5/02 ,  G01S5/04 ,  G01S5/14 ,  G01S3/04

CPC分类号： G01S5/12 ,  G01S3/043 ,  G01S3/72 ,  G01S5/0221 ,  G01S5/0278 ,  G01S5/04 ,  G01S5/14

摘要： A method of passive location of radar transmitters implemented by at least two ESM stations, the radars having a quasi-constant scanning speed in the course of the transit over the set comprising at least two ESM stations, each of the ESM stations being able to intercept the transmission lobes of radar transmitters and to estimate their lobe transit times (LTT) and at least one station being able to estimate the angle of arrival α of the transmission lobes, the location of the radar transmitters being performed by testing the intersection between an iso-LTTD curve passing through at least the two ESM stations and a sighting straight line passing through the ESM station having measured the angle of arrival and of azimuth equal to the measured angle of arrival α.

公开(公告)号：US20170163318A1

公开(公告)日：2017-06-08

申请号：US15325069

申请日：2014-07-24

申请人： LG ELECTRONICS INC.

发明人： Ilmu BYUN ,  Hyunsoo KO ,  Kungmin PARK ,  Heejeong CHO ,  Hyeyoung CHOI

IPC分类号： H04B7/0417 ,  G01S3/72 ,  H04B10/50 ,  H04B7/0452 ,  H04B7/06

CPC分类号： H04B7/0417 ,  G01S3/72 ,  H04B7/0452 ,  H04B7/0617 ,  H04B7/0619 ,  H04B7/0695 ,  H04B10/5055

摘要： Provided are a method and an apparatus for generating and transmitting feedback signals for a plurality of reference signals having different directionality, in a wireless communication system. A terminal may receive the plurality of reference signals having different directionality, and transmit, to a transmission end, a feedback signal including a beam index which indicates one of the plurality of reference signals.

公开(公告)号：US09535151B2

公开(公告)日：2017-01-03

申请号：US13725621

申请日：2012-12-21

申请人： HRL Laboratories, LLC

发明人： Jonathan J. Lynch

IPC分类号： G01S3/72 ,  G01S3/46 ,  G01S13/66 ,  G01S13/02

CPC分类号： G01S3/72 ,  G01S3/46 ,  G01S13/66 ,  G01S2013/0245

摘要： A method and apparatus for determining the range, radial velocity, and bearing angles of scattering objects reflecting RF signals or for determining the range, radial velocity, and bearing angles of sources RF signals. An array of antenna elements is utilized, the array of antenna elements each having an associated two state modulator wherein transmitted and/or received energy is phase encoded according to a sequence of multibit codes, the bits of the multibit codes each preferably having two states with approximately a 50% probability for each of the two states occurring within each given multibit code in said sequence of multibit codes, thereby allowing the determination of range, radial velocity, and bearing angles through digital computation after the scattered signals have been received.

摘要翻译： 用于确定反射RF信号的散射物体的范围，径向速度和方位角的方法和装置，或用于确定源RF信号的范围，径向速度和方位角。 使用天线元件阵列，天线元件阵列各自具有相关联的两个状态调制器，其中发射和/或接收的能量根据多位代码的序列被相位编码，多位代码的比特优选地具有两个状态， 在所述多位代码序列中的每个给定的多位代码内发生的两个状态中的每一个的概率约为50％，从而允许通过在接收到散射信号之后的数字计算来确定范围，径向速度和方位角。

公开(公告)号：US20130096861A1

公开(公告)日：2013-04-18

申请号：US13634659

申请日：2010-03-17

申请人： Fabio Belloni ,  Ville Ranki ,  Antti Kainulainen

发明人： Fabio Belloni ,  Ville Ranki ,  Antti Kainulainen

IPC分类号： G01S19/23

CPC分类号： G01S19/235 ,  G01S3/72 ,  G01S5/021

摘要： A method including receiving signals associated with multiple antenna elements; obtaining a parameter of the received signals for at least some of the multiple antenna elements; testing the obtained parameters; if the test fails, rejecting the received signals for use in positioning the apparatus; if the test passes, using the received signals for positioning the apparatus.

摘要翻译： 一种包括接收与多个天线元件相关联的信号的方法; 获得所述多个天线元件中的至少一些的接收信号的参数; 测试获得的参数; 如果测试失败，拒绝接收的信号用于定位设备; 如果测试通过，则使用接收的信号来定位设备。

公开(公告)号：US20070218870A1

公开(公告)日：2007-09-20

申请号：US11717737

申请日：2007-03-14

申请人： Tetsuya Satoh

发明人： Tetsuya Satoh

IPC分类号： H04M11/04

CPC分类号： G01S5/12 ,  G01S3/72 ,  G01S5/0289 ,  H04W64/00

摘要： A radio communication apparatus includes a variable directivity antenna and a control unit and performs radio communication with another radio communication apparatus. The control unit calculates a position of the another radio communication apparatus by measuring a distance to the another radio communication apparatus and measuring directivity of the another radio communication apparatus by switching directivity of the wave of radio communication using the variable directivity antenna with a MEMS switch. Moreover, the control unit controls the output of the variable directivity antenna according to the calculated position of the another radio communication apparatus.

摘要翻译： 无线通信装置包括可变方向性天线和控制单元，并与另一无线通信装置进行无线通信。 控制单元通过使用具有MEMS开关的可变方向性天线切换无线电通信的波的方向性，通过测量到另一无线电通信装置的距离并测量另一无线电通信装置的方向性来计算另一无线电通信装置的位置。 此外，控制单元根据计算出的另一无线通信装置的位置来控制可变方向性天线的输出。

公开(公告)号：US12038519B2

公开(公告)日：2024-07-16

申请号：US18458849

申请日：2023-08-30

申请人： David E. Newman ,  R. Kemp Massengill

发明人： David E. Newman ,  R. Kemp Massengill

IPC分类号： G01S3/72 ,  H04B17/24 ,  G01S3/04 ,  G01S3/64 ,  H04B17/27

CPC分类号： G01S3/72 ,  H04B17/24 ,  G01S3/043 ,  G01S3/64 ,  H04B17/27

摘要： Beamforming is a critical element of 5G and especially 6G, but currently requires a series of time-consuming and resource-consuming messages. Disclosed are procedures by which base stations can transmit a phased beam pulse, having a phase that varies with angle, so that each user device can measure the received phase of the pulse and thereby determine its angle relative to the base station. Each user can then sequentially inform the base station of its orientation relative to the base station, or can append that information to another message such as an initial access message or an acknowledgement, for example. The user device and the base station can then exchange messages in narrow beams aimed at each other according to the alignment angle. Also disclosed are procedures to economically generate the wide-angle phased beam by combining overlapping beams of various phases.

公开(公告)号：US20170134900A1

公开(公告)日：2017-05-11

申请号：US15346482

申请日：2016-11-08

申请人： QUALCOMM Incorporated

发明人： Rahul Malik ,  Carlos Horacio Aldana

IPC分类号： H04W4/02 ,  G01S3/74 ,  H04L5/00 ,  G01S3/72 ,  H04B7/06 ,  H04B17/27

CPC分类号： H04W4/023 ,  G01S3/72 ,  G01S3/74 ,  H01Q3/2605 ,  H04B7/0682 ,  H04B17/27 ,  H04L1/0086 ,  H04L5/0044 ,  H04L5/0053

摘要： Aspects of the present disclosure may compensate for cyclic shift delays (CSD) in transmitted signals when estimating angle of arrival information of a wireless signal transmitted by a transmitting device. In some aspects, a receiving device may determine a presence of CSD in the wireless signal, and estimate an angle of arrival of the wireless signal based at least in part on the presence of CSD. For example, the receiving device may determine a first tap of the wireless channel based at least in part on the CSD. The receiving device may then determine a phase difference of the wireless signal between a plurality of antennas of the receiving device based on the first tap of the wireless channel. The receiving device may estimate the angle of arrival of the wireless signal based on the phase difference.

公开(公告)号：US20170117946A1

公开(公告)日：2017-04-27

申请号：US15298225

申请日：2016-10-20

申请人： MANDO CORPORATION ,  Soongsil University Foundation of university-industry cooperation

发明人： JaeEun LEE ,  HaeSueng LIM ,  Seong Hee JEONG ,  Hyun-Chool SHIN

IPC分类号： H04B7/06 ,  H04L5/00

CPC分类号： H04B7/0617 ,  G01S3/72 ,  G01S7/4021 ,  G01S13/34 ,  G01S13/931 ,  H04B7/086 ,  H04L5/0048

摘要： The present invention relates to an apparatus for estimating an arrival-angle of a reception signal and a beam-forming apparatus in a radio wave receiver, such as radar. More specifically, the present invention relates to an apparatus for accurately estimating an arrival-angle of a reception signal, or an apparatus for performing the beam-forming of a reception signal by using a multi-reception array antenna, by using a reference value that is obtained by calculating the degree of distortion of the magnitude and phase of a signal for each reception angle.

公开(公告)号：US09404993B2

公开(公告)日：2016-08-02

申请号：US14446494

申请日：2014-07-30

申请人： Aruba Networks, Inc.

发明人： Dongwoon Hahn ,  Subburajan Ponnuswamy

IPC分类号： H04B7/02 ,  G01S3/72 ,  H04B7/04 ,  H04B7/06

CPC分类号： G01S3/72 ,  G01S5/0215 ,  G01S5/0273 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/0617

摘要： Disclosed herein, one embodiment of the disclosure is directed to a system, apparatus, and method for location estimation in the presence of multipath/non-line-of-sight (NLOS) conditions. Various methods have been contemplated to detect the level of multipath/NLOS propagation between two devices. A SNR variation method determines how the SNR of each chain/stream is varying over a time window in order to detect the chain/stream with least local scattering or multipath. A measure of coherence SNR is defined to measure the level of multipath/NLOS per-chain/stream. Moreover, since per-subcarrier SNR information is available at the one or both nodes, the coherence methods can be used on a per-subcarrier basis to detect multipath/NLOS for the entire channel, for the specific spatial stream or for the specific frequencies occupied by the subcarriers. Furthermore, a coherence bandwidth estimation method uses the SNR variation over subcarriers to detect the coherence bandwidth of the spatial stream. The amount of multipath/NLOS is inversely proportional to the coherence bandwidth.

摘要翻译： 本文公开了本公开的一个实施例涉及在存在多路径/非视距（NLOS）条件的情况下进行位置估计的系统，装置和方法。 已经考虑了各种方法来检测两个装置之间的多径/ NLOS传播的水平。 SNR变化方法确定每个链/流的SNR如何在时间窗口上变化，以便检测具有最少局部散射或多径的链/流。 定义了相干SNR的度量来测量多径/ NLOS每链/流的水平。 此外，由于每个子载波SNR信息在一个或两个节点处可用，所以可以在每个子载波的基础上使用相干方法来检测整个信道的多路径/ NLOS，对于特定空间流或对于特定频率占用 由子载波。 此外，相干带宽估计方法使用在子载波上的SNR变化来检测空间流的相干带宽。 多径/ NLOS的数量与相干带宽成反比。