公开(公告)号：WO2023049204A1

公开(公告)日：2023-03-30

申请号：PCT/US2022/044282

申请日：2022-09-21

Applicant: DC-001, INC. DBA SPARTAN RADAR

Inventor： BERGEN, Scott

IPC: G01S19/11 ,  G01S19/10 ,  G01S13/74 ,  G01S19/45 ,  G01S3/02 ,  G01S5/02

Abstract: The present disclosure generally pertains to systems and methods for providing position information to aircraft using radio-frequency signals. By providing a ground-based solution entirely independent of GPS, systems of the present disclosure can make navigation systems more accurate and robust, enhancing their effectiveness and safety. More precisely, systems of the present disclosure may employ a series of ground-based beacon transmitters to provide coverage across a defined geographic region. Primary beacon transmitters may be used to generate a radio-frequency (RF) signal pulse with a highly regular frequency. A larger number of secondary beacon transmitters may be used to re-transmit these RF signal pulses with a tightly controlled turnaround time. A locating receiver can detect the arrival times of these pulses and use this information, along with stored information about the relative positions of the beacon transmitters, to determine its location.

公开(公告)号：WO2023043461A1

公开(公告)日：2023-03-23

申请号：PCT/US2021/051055

申请日：2021-09-20

Applicant: NOKIA TECHNOLOGIES OY ,  NOKIA OF AMERICA CORPORATION

Inventor： BARBU, Oana-Elena ,  KEATING, Ryan

IPC: G01S5/02 ,  G01S3/02 ,  G01S19/06 ,  G01S19/42

Abstract: Disclosed is a method comprising communicating, during a positioning session for positioning of a terminal device, at least one positioning signal in a first positioning state of at least two positioning states configured for the positioning session; switching from the first positioning state to a second positioning state of the at least two positioning states, wherein the first and second positioning states correspond to different reference signal configurations used for communicating of the at least one positioning signal; and communicating the at least one positioning signal in the second positioning state during the positioning session.

公开(公告)号：WO2023018115A1

公开(公告)日：2023-02-16

申请号：PCT/KR2022/011641

申请日：2022-08-05

Applicant: 삼성전자 주식회사

Inventor： 최근영 ,  강두석 ,  강문석 ,  김현철 ,  양이

IPC: G01S5/02 ,  G01S3/14 ,  G01S3/02 ,  G01R31/382 ,  G06T19/00 ,  G06F11/30

Abstract: 다양한 실시예에 따른 전자 장치에서, 전자 장치는 외부 전자 장치로부터 신호를 획득하는 적어도 하나의 안테나를 포함하는 UWB 통신 회로, 상기 UWB 통신 회로와 작동적으로 연결된 프로세서 및 상기 프로세서와 작동적으로 연결된 메모리를 포함하고, 상기 메모리는, 실행 시에 상기 프로세서가, 상기 적어도 하나의 안테나로부터 적어도 하나의 신호를 획득하고, 상기 적어도 하나의 신호의 도달 위상차(phase-difference-of-arrival)를 결정하고, 상기 전자 장치의 상태와 관련된 정보를 획득하고, 상기 메모리로부터 상기 획득된 전자 장치의 상태 정보에 대응하는 교정 값을 획득하고, 상기 신호의 도달 위상차 및 상기 교정 값에 기반하여 도달 각도(angle-of-arrival)를 결정하도록 하는 하나 이상의 인스트럭션들을 저장할 수 있다.

公开(公告)号：WO2022215064A1

公开(公告)日：2022-10-13

申请号：PCT/IL2022/050335

申请日：2022-03-27

Applicant: ELTA SYSTEMS LTD.

Inventor： FIREAIZEN, Moshe ,  RAZON, Aharon

IPC: G01S3/46 ,  G01S5/06 ,  G01S5/04 ,  G01S3/02 ,  H01Q21/00

Abstract: A direction finder antenna system and method are described. The direction finder antenna system comprises a rotatable platform comprising at least two antenna units at selected distance between them, a motor configured for moving the rotatable platform at a motion pattern, and a signal collection circuit configured for receiving data on signal portions collected by said at least two antenna units with respect to different angular positions of said at least two antenna units. The signal collection circuit generates output data indicative of direction of origin of collected signal.

公开(公告)号：WO2022203761A2

公开(公告)日：2022-09-29

申请号：PCT/US2022/014387

申请日：2022-01-28

Applicant: DEEPSIG INC.

Inventor： DEPOY, Daniel ,  NEWMAN, Timothy ,  WEST, Nathan ,  ROY, Tamoghna ,  O'SHEA, Timothy James ,  GILBERT, Jacob

IPC: G01S3/02 ,  G06N3/02 ,  G01S3/06 ,  G01S5/02 ,  G01S5/06 ,  G06F30/20 ,  G06N3/08 ,  G06N3/10 ,  G01S3/14 ,  G06N20/00 ,  G01S3/023 ,  G01S3/043 ,  G01S5/0278 ,  G06N3/00

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer-storage media, for positioning a radio signal receiver at a first location within a three dimensional space; positioning a transmitter at a second location within the three dimensional space; transmitting a transmission signal from the transmitter to the radio signal receiver; processing, using a machine-learning network, one or more parameters of the transmission signal received at the radio signal receiver; in response to the processing, obtaining, from the machine-learning network, a prediction corresponding to a direction of arrival of the transmission signal transmitted by the transmitter; computing an error term by comparing the prediction to a set of ground truths; and updating the machine-learning network based on the error term.

公开(公告)号：WO2020169629A1

公开(公告)日：2020-08-27

申请号：PCT/EP2020/054279

申请日：2020-02-19

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： BERNSEN, Johannes, Arnoldus, Cornelis ,  VAN DE LAAR, Franciscus, Antonius, Maria

IPC: H04W4/02 ,  G01S3/02 ,  G01S5/02 ,  H04W56/00 ,  H04W12/08 ,  H04W12/00

Abstract: A device is arranged for determining a first distance according to a ranging protocol using a measurement message from a second device. A cooperating device (130) has a directional antenna (133) and is located at a trusted distance (150) sharing a connecting direction (160) with the first device. The cooperating device determines a third direction of the same measurement message, and transfers support data to the first device based on the third direction. The first device first determines a first angle (161) between the first direction and the connecting direction and obtains a third angle (163) between the third direction and the connecting direction using the support data. Then a verification test is performed on the first distance (151), the trusted distance (150), the first and the third angle. The first distance is reliable when said distances and angles correspond to a viable spatial constellation (100) of the devices.

公开(公告)号：WO2020154377A1

公开(公告)日：2020-07-30

申请号：PCT/US2020/014577

申请日：2020-01-22

Applicant: BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION INC.

Inventor： SCHIFFMILLER, Richard

IPC: G01S3/02 ,  G01S3/04 ,  H01Q1/32

Abstract: Techniques are disclosed for determining AOA of one or more radar pulses received at a vehicle and originating from a source. The techniques are particularly well- suited to provide pilots with a more accurate determination of the azimuth angle to the radar source, although ground-based and water-based vehicles may benefit as well. Some embodiments discussed herein determine a true estimation of both azimuth and elevation angles, with reference to an aircraft's body-centered coordinate system, to the radar source. These parameters can also be used to determine a more accurate position on the ground for the radar source.

公开(公告)号：WO2019195327A1

公开(公告)日：2019-10-10

申请号：PCT/US2019/025436

申请日：2019-04-02

Applicant: GOOGLE LLC

Inventor： GILLIAN, Nicholas ,  MATUSZAK, Michal ,  PONCE MADRIGAL, Octavio ,  LIEN, Jaime ,  AMIHOOD, Patrick M. ,  POUPYREV, Ivan

IPC: G01S7/41 ,  G01S13/44 ,  G01S13/34 ,  G01S13/72 ,  G01S13/86 ,  G01S7/40 ,  G01S13/88 ,  G01S3/02 ,  G01S3/14 ,  G01S3/74 ,  G01S7/35 ,  G01S13/93 ,  G06N3/02 ,  G06F3/01

Abstract: Techniques and apparatuses are described that implement a smart-device-based radar system capable of performing angular estimation using machine learning. In particular, a radar system (102) includes an angle-estimation module (504) that employs machine learning to estimate an angular position of one or more objects (e.g., users). By analyzing an irregular shape of the radar system (102)'s spatial response across a wide field of view, the angle-estimation module (504) can resolve angular ambiguities that may be present based on the angle to the object or based on a design of the radar system (102) to correctly identify the angular position of the object. Using machine-learning techniques, the radar system (102) can achieve a high probability of detection and a low false-alarm rate for a variety of different antenna element spacings and frequencies.

公开(公告)号：WO2016137649A1

公开(公告)日：2016-09-01

申请号：PCT/US2016/015343

申请日：2016-01-28

Applicant: THOMSON LICENSING

Inventor： STEWART, John Sidney

IPC: G01S3/02 ,  G01S3/04 ,  G01S3/40 ,  G01S3/74 ,  G01F15/06 ,  H01Q1/12 ,  H01Q3/00 ,  H04N5/44 ,  H04N21/61

CPC classification number: H04N5/4401 ,  H01Q3/005 ,  H04H2201/16 ,  H04N21/422 ,  H04N21/6112

Abstract: A method for determining an antenna for best signal reception, including accepting a channel selection, recording the channel selection, recording signal quality of the selected channel at a signal meter location, wherein a portable ASTC 3.0 receiver acts as a signal meter, determining if there are additional channels for which signal quality is to be determined, assigning weights for each of the channels for which signal quality was measured and recorded, calculating signal quality for each the selected channels at the signal meter location and displaying a best direction for pointing the antenna based on the calculation.

Abstract translation: 一种用于确定用于最佳信号接收的天线的方法，包括接收信道选择，记录频道选择，在信号仪表位置记录所选频道的信号质量，其中便携式ASTC 3.0接收机用作信号仪，确定是否存在 是要确定信号质量的附加信道，为测量和记录信号质量的每个信道分配权重，在信号计量器位置处计算每个所选信道的信号质量，并显示用于指示天线的最佳方向 基于计算。

公开(公告)号：WO2015168700A1

公开(公告)日：2015-11-05

申请号：PCT/US2015/029105

申请日：2015-05-04

Applicant: THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY

Inventor： JOSHI, Kiran ,  BHARADIA, Dinesh ,  KATTI, Sachin ,  KOTARU, Manikanta

IPC: G01S3/02

CPC classification number: G01S13/56 ,  G01S13/538 ,  G01S13/87

Abstract: Techniques for a motion tracing device using radio frequency signals are presented. The motion tracing device utilizes radio frequency signals, such as WiFi to identify moving objects and trace their motion. Methods and apparatus are defined that can measure multiple WiFi backscatter signals and identify the backscatter signals that correspond to moving objects. In addition, motion of a plurality of moving objects can be detected and traced for a predefined duration of time.

Abstract translation: 提出了使用射频信号的运动跟踪装置的技术。 运动跟踪装置利用诸如WiFi之类的射频信号来识别移动物体并追踪其运动。 定义了可以测量多个WiFi后向散射信号并识别对应于移动物体的反向散射信号的方法和装置。 此外，可以检测并跟踪多个移动对象的运动达预定的持续时间。