公开(公告)号：US11762079B2

公开(公告)日：2023-09-19

申请号：US17132071

申请日：2020-12-23

Applicant: Aurora Innovation, Inc.

Inventor： Stephen Crouch ,  Chunshu Li

IPC: G01S13/42 ,  G01S13/931 ,  G01S13/58 ,  G01S7/35 ,  G01S13/87

CPC classification number: G01S13/426 ,  G01S7/354 ,  G01S13/584 ,  G01S13/931 ,  G01S7/356 ,  G01S13/42 ,  G01S13/878

Abstract: A vehicle radar system utilizes multiple radar sensors having overlapping fields of view to effectively synthesize a distributed radar antenna array aperture from the outputs of the multiple radar sensors and effectively enhance one or more of angular resolution, detection range and signal to noise ratio beyond that supported by any of the radar sensors individually.

公开(公告)号：US20230288550A1

公开(公告)日：2023-09-14

申请号：US18070816

申请日：2022-11-29

Applicant: HL Klemove Corp.

Inventor： SangHee JANG

IPC: G01S13/42 ,  G01S13/931 ,  G01S13/72

CPC classification number: G01S13/426 ,  G01S13/931 ,  G01S13/723

Abstract: The embodiments relate to a radar control device and method. Specifically, a radar control device according to the embodiments may include a transceiver configured to transmit a transmission signal and receive a reflected reception signal, an object position determiner configured to determine a first measurement in a first period and a second measurement in a second period after the first period based on the reception signal, and an object direction estimator configured to set a plurality of boundary lines around the first object position, determine a plurality of predicted objects each having, as an orientation angle, a direction in which the plurality of boundary lines extend from a center of the first object position, respectively, and estimate an orientation angle of a predicted object closest to the second object position as an orientation angle of the object in the second period.

公开(公告)号：US11747435B2

公开(公告)日：2023-09-05

申请号：US17243616

申请日：2021-04-29

Applicant: Texas Instruments Incorporated

Inventor： Sandeep Rao ,  Saurabh Khanna

IPC: G01S7/03 ,  G01S7/35 ,  G01S13/34 ,  G01S13/42 ,  G01S13/931 ,  H01Q3/26 ,  H01Q1/32 ,  H01Q3/24 ,  H01Q21/08

CPC classification number: G01S7/032 ,  G01S7/354 ,  G01S13/34 ,  G01S13/42 ,  G01S13/931 ,  H01Q1/3233 ,  H01Q3/247 ,  H01Q3/2629 ,  H01Q21/08

Abstract: A radar apparatus for estimating position of a plurality of obstacles. The radar apparatus includes a receive antenna unit. The receive antenna unit includes a linear array of antennas and an additional antenna at a predefined offset from at least one antenna in the linear array of antennas. The radar apparatus also includes a signal processing unit. The signal processing unit estimates an azimuth frequency associated with each obstacle of the plurality of obstacles from a signal received from the plurality of obstacles at the linear array of antennas. In addition, the signal processing unit estimates an azimuth angle and an elevation angle associated with each obstacle from the estimated azimuth frequency associated with each obstacle.

公开(公告)号：US20230268663A9

公开(公告)日：2023-08-24

申请号：US17361214

申请日：2021-06-28

Applicant: Metawave Corporation

Inventor： Maha ACHOUR ,  George DANIEL

IPC: H01Q21/00 ,  H01Q1/28 ,  G05D1/00 ,  G01S13/86 ,  G01S7/41 ,  G01S13/931 ,  G01S13/42 ,  G01S13/02 ,  G01S13/935 ,  H01Q3/00

CPC classification number: H01Q21/0025 ,  H01Q1/28 ,  G05D1/0088 ,  G01S13/867 ,  G01S13/865 ,  G01S7/412 ,  G01S13/931 ,  G01S13/426 ,  G01S13/02 ,  G01S13/935 ,  H01Q3/00 ,  G05D2201/0213 ,  G01S2013/0263 ,  G01S7/417 ,  G01S2013/932 ,  G01S2013/9322

Abstract: Examples disclosed herein relate to a sensor fusion system for use in an autonomous vehicle. The sensor fusion system has a radar detection unit with a metastructure antenna to direct a beamform in a field-of-view (“FoV”) of the vehicle, an analysis module to receive information about a detected object and determine control actions for the radar detection unit and the metastructure antenna based on the received information and on environmental information, and an autonomous control unit to control actions of the vehicle based on the received information and the environmental information.

公开(公告)号：US11733375B2

公开(公告)日：2023-08-22

申请号：US16241847

申请日：2019-01-07

Applicant: HL KLEMOVE CORP.

Inventor： Woo Young Kim

IPC: G01S13/931 ,  G01S13/86 ,  G01S13/42 ,  G01S7/41 ,  G06V20/58 ,  H01Q21/06

CPC classification number: G01S13/931 ,  G01S7/411 ,  G01S13/42 ,  G01S13/867 ,  G06V20/58 ,  H01Q21/061

Abstract: Disclosed are an apparatus and a method for controlling a radar. More specifically, disclosed is a method of setting detection modes of a radar mounted to a vehicle and controlling radar transmission signals according to the detection modes. An embodiment provides an apparatus for controlling a radar including: a target detector configured to detect targets around a vehicle and classify the detected targets; a transmission pattern setter configured to set a transmission pattern of transmission signals, based on at least one piece of detection distance information of the detected targets, detection location information, detection height information, and information on a number of detected targets; and a transmission signal controller configured to select at least one array antenna from a plurality of array antennas according to the transmission pattern and radiate the transmission signals through the selected array antenna, a method thereof, and a system.

公开(公告)号：US11733370B2

公开(公告)日：2023-08-22

申请号：US17358189

申请日：2021-06-25

Applicant: Johnson Controls Tyco IP Holdings LLP

Inventor： Lior Kirsch ,  Yohai Falik ,  Igal Dvir

IPC: G01S13/86 ,  G01S7/40 ,  G01S13/42 ,  G01S13/68 ,  G01S13/00

CPC classification number: G01S13/867 ,  G01S7/4004 ,  G01S13/42 ,  G01S13/68

Abstract: A building radar-camera system includes a camera configured to capture one or images, the one or more images including first locations within the one or more images of one or more points on a world-plane and a radar system configured to capture radar data indicating second locations on the world-plane of the one or more points. The system includes one or more processing circuits configured to receive a correspondence between the first locations and the second locations of the one or more points, generate a sphere-to-plane homography, the sphere-to-plane homography translating between points captured by the camera modeled on a unit-sphere and the world-plane based on the correspondence between the first locations and the second locations, and translate one or more additional points captured by the camera or captured by the radar system between the unit-sphere and the world-plane based on the sphere-to-plane homography.

公开(公告)号：US11733367B1

公开(公告)日：2023-08-22

申请号：US17230011

申请日：2021-04-14

Applicant: BAE SYSTEMS Information and Electronic Systems Integration Inc.

Inventor： Paul D. Zemany ,  David P. Charette ,  Matthew F. Chrobak ,  Court E. Rossman

IPC: G01S13/42 ,  F41G7/22

CPC classification number: G01S13/42 ,  F41G7/2246 ,  F41G7/2286

Abstract: The system and method for chromatic correlation interferometry direction finding (CIDF) used to resolve ambiguities. Ambiguities are overcome by correlating over a range of frequencies. In some cases, multiple (i.e., 2 or more) frequencies or a continuous range of frequencies are used to make a more robust correlation manifold. As the complex response manifold is frequency dependent, using a set of two or more manifolds provides a significant reduction of false peaks.

公开(公告)号：US20230236303A1

公开(公告)日：2023-07-27

申请号：US17584865

申请日：2022-01-26

Applicant: QUALCOMM Incorporated

Inventor： Solomon TRAININ ,  Assaf Yaakov KASHER ,  Alecsander Petru EITAN ,  Alireza RAISSINIA

IPC: G01S13/42

CPC classification number: G01S13/42

Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for radio frequency (RF) sensing in the millimeter-wave frequency spectrum that can be performed over multiple phases. During a session setup phase, a radar initiator identifies one or more wireless stations (STAs) that are capable of radar ranging and sets up a radar measurement session that includes at least one of the identified STAs. During a measurement negotiation phase, the radar initiator performs a respective beamforming training operation with each STA and indicates, to each STA, one or more parameters associated with the radar measurement session. During a radar measurement phase, the radar initiator transmits radar setup information to, and receives ranging information from, each STA. In some aspects, the radar initiator may perform an object detection operation that indicates a location of an object associated with the ranging information received from each radar STA.

公开(公告)号：US11698283B2

公开(公告)日：2023-07-11

申请号：US16876474

申请日：2020-05-18

Applicant: Rosemount Tank Radar AB

Inventor： Christer Frövik ,  Olov Edvardsson

IPC: G01F23/284 ,  G01S13/08 ,  G01S7/40 ,  G01S13/42 ,  G01F25/20 ,  G01S7/00 ,  G01S7/02 ,  G01S13/88 ,  G01S13/46 ,  H01Q1/22

CPC classification number: G01F23/284 ,  G01F25/20 ,  G01S7/003 ,  G01S7/025 ,  G01S7/403 ,  G01S7/4008 ,  G01S7/4021 ,  G01S7/4026 ,  G01S13/08 ,  G01S13/426 ,  G01S13/46 ,  G01S13/88 ,  H01Q1/225

Abstract: A method carried out using a radar level gauge system, the tank having a tank roof supporting the radar level gauge system, a tank wall, and a tank atmosphere in a space defined by a surface of a product in the tank, the tank roof, and the tank wall, wherein the method comprises generating and transmitting an electromagnetic first transmit signal; propagating the first transmit signal through the tank atmosphere towards a corner reflector formed by the surface of the product and the tank wall where the surface of the product meets the tank wall, the corner reflector being at a known horizontal distance from the radar level gauge system; receiving an electromagnetic first reflection signal resulting from reflection of the first transmit signal at the corner reflector; and performing a filling level determination and/or a verification operation for the radar level gauge system based on a timing relation between the first transmit signal and the first reflection signal, and the known horizontal distance between the radar level gauge system and the corner reflector.

公开(公告)号：US11693112B2

公开(公告)日：2023-07-04

申请号：US16288791

申请日：2019-02-28

Applicant: Government of the United States, as represented by the Secretary of the Air Force ,  The Secretary of State for Defense, as represented by the Defense Science Technology Laboratory

Inventor： Aaron M Jones ,  Richard Walkerdine ,  Joseph Spencer

IPC: G01S15/89 ,  G01S13/04 ,  G01S13/32 ,  G01S7/35 ,  G01S13/42 ,  G01S7/52

CPC classification number: G01S15/8915 ,  G01S7/35 ,  G01S13/04 ,  G01S13/32 ,  G01S13/42 ,  G01S15/8995 ,  G01S7/52019 ,  G01S7/52085 ,  G01S15/8952

Abstract: A continuous wave, frequency diverse array (FDA) Detector, Transmitter, Receiver and/or Method are disclosed. The frequencies can be radio waves or sonic waves. Different frequencies are applied to each transmitter element, to generate transmissions schemes with repeating patterns of constructive interference (e.g. each pattern may be a spiral). The patterns differ (e.g. opposite spiral directions to help determine azimuth, or different spiral rotation speeds to help determine range), to a sufficient extent that from the timing of signal reflected back as a result of each one, the azimuth and/or range of an object can be determined, irrespective of where the object/target is in the field of view. Use of continuous wave transmissions enables lower transmission powers and/or avoids requiring an expensive beam-steering transmitters or receivers.