公开(公告)号：US12111411B1

公开(公告)日：2024-10-08

申请号：US17367888

申请日：2021-07-06

申请人： Waymo LLC

发明人： Alessandro Temil ,  Gary Clayton

IPC分类号： G01S7/02 ,  G01S7/40 ,  G06N5/04 ,  G06N20/00

CPC分类号： G01S7/023 ,  G01S7/40 ,  G01S7/4021 ,  G06N5/04 ,  G06N20/00

摘要： Example embodiments relate to methods and systems for automated generation of radar interference reduction training data for autonomous vehicles. In an example, a computing device causes a radar unit to transmit radar signals in an environment of a vehicle. The computing device may include a model trained based on a labeled interferer dataset that represents interferer signals generated by an emitter located remote from the vehicle. The interferer signals are based on one or more radar signal parameter models. The computing device may use the model to determine whether received electromagnetic energy corresponds to transmitted radar signals or an interferer signal. Based on determining that the electromagnetic energy corresponds to the transmitted radar signals, the computing device may generate a representation of the environment of the vehicle using the electromagnetic energy.

公开(公告)号：US12108439B2

公开(公告)日：2024-10-01

申请号：US17634810

申请日：2019-08-15

申请人： Nokia Technologies Oy

发明人： Benny Vejlgaard ,  Kari Pajukoski ,  Marco Maso ,  Jorma Kaikkonen

IPC分类号： H04W74/00 ,  G01S7/02 ,  H04W74/0833

CPC分类号： H04W74/008 ,  G01S7/021 ,  G01S7/023 ,  H04W74/0833

摘要： There is provided radar operation in a wireless communication system. A method comprises transmitting a random access message for one or more communication resources for a radar operation of a wireless device of a wireless communication system, receiving a grant for at least one communication resource for the radar operation of the wireless device, selecting a radar sequence for generating a radar signal, and transmitting the radar signal using the selected radar sequence in the communication resource.

公开(公告)号：US12105218B2

公开(公告)日：2024-10-01

申请号：US17600865

申请日：2020-04-03

申请人： Xonar Technology Inc.

发明人： Jeffrey McFadden ,  Stan Ivanov

IPC分类号： G01S7/02 ,  G01S7/03 ,  G01S13/02 ,  G01S13/88 ,  H01Q17/00

CPC分类号： G01S7/023 ,  G01S7/027 ,  G01S7/038 ,  G01S13/0209 ,  G01S13/887 ,  H01Q17/001

摘要： An ultra-wideband (UWB) system includes an enclosure, and an ultra-wideband (UWB) transmitter array within the enclosure, the UWB transmitter array having a transmitter component that transmits electromagnetic waves toward a region-of-interest (ROI), the UWB array having a receiver component that receives reflected electromagnetic waves from objects in the ROI and generates object data. The system further includes a radar absorbing material positioned to receive electromagnetic waves transmitted from the transmitter component that are not directed toward the ROI, and a pattern recognition device having a processor configured to process the electromagnetic waves reflected from the ROI and to determine whether an object-of-interest (OOI) pattern is recognized within the object data.

公开(公告)号：US12085664B2

公开(公告)日：2024-09-10

申请号：US17837019

申请日：2022-06-09

申请人： AyDeeKay LLC

发明人： Tom Heller

IPC分类号： G01S7/02 ,  G01R31/317 ,  G01S7/03 ,  G01S7/35 ,  G01S7/40 ,  G01S13/34 ,  G01S13/36 ,  G01S13/931

CPC分类号： G01S7/023 ,  G01R31/31724 ,  G01S7/0233 ,  G01S7/0234 ,  G01S7/0235 ,  G01S7/034 ,  G01S7/352 ,  G01S7/40 ,  G01S7/4056 ,  G01S13/34 ,  G01S13/36 ,  G01S13/931

摘要： Automotive radar methods and systems for enhancing resistance to interference using a built-in self-test (BIST) module. In one illustrative embodiment, an automotive radar transceiver includes: a signal generator that generates a transmit signal; a modulator that derives a modulated signal from the transmit signal using at least one of phase and amplitude modulation; at least one receiver that mixes the transmit signal with a receive signal to produce a down-converted signal, the receive signal including the modulated signal during a built-in self-test (BIST) mode of operation; and at least one transmitter that drives a radar antenna with a selectable one of the transmit signal and the modulated signal.

公开(公告)号：US12044771B2

公开(公告)日：2024-07-23

申请号：US18148943

申请日：2022-12-30

申请人： Honeywell International Inc.

发明人： Ruy C. Brandao

IPC分类号： H04B1/04 ,  G01S7/02 ,  G01S13/76 ,  G01S13/91 ,  G08G5/00 ,  H04B1/10 ,  H04B1/38 ,  H04B1/3822

CPC分类号： G01S13/765 ,  G01S7/023 ,  G01S13/762 ,  G01S13/91 ,  G08G5/0004 ,  H04B1/0475 ,  H04B1/1027 ,  H04B1/3822 ,  H04B2001/0416

摘要： In some examples, a system includes a transceiver configured to transmit a first surveillance message at a first power level at or below a first maximum power level. The system also includes processing circuitry coupled to the transceiver, the processing circuitry configured to determine that a threshold condition exists. The processing circuitry is also configured to determine a second maximum power level in response to determining that the threshold condition exists, where the second maximum power level is lower than the first maximum power level. The transceiver is configured to transmit, in response to the processing circuitry determining that the threshold condition exists, a second surveillance message at a second power level, wherein the second power level is at or below the second maximum power level.

公开(公告)号：USRE49920E1

公开(公告)日：2024-04-16

申请号：US17706418

申请日：2022-03-28

申请人： Panasonic Corporation

发明人： Takaaki Kishigami

IPC分类号： G01S13/04 ,  G01S7/02 ,  G01S7/288 ,  G01S7/292 ,  G01S13/10 ,  G01S13/28 ,  G01S13/86

CPC分类号： G01S7/0234 ,  G01S7/023 ,  G01S7/288 ,  G01S7/2921 ,  G01S13/04 ,  G01S13/106 ,  G01S13/288 ,  G01S13/86

摘要： A radar apparatus includes a radar transmitter that transmits a radar signal in a predetermined transmission cycle and a radar receiver that receives a reflection wave signal being a reflection of the radar signal on a target. The radar transmitter includes a phase rotation controller that randomly varies a pattern of a phase rotation every period corresponding to a plurality of transmission cycles, the pattern being to be applied to the radar signal within a period, and a transmission phase rotator that assigns a first phase rotation to the radar signal in accordance with the pattern. The radar receiver includes a reception phase rotator that assigns a second phase rotation in a direction opposite to a direction of the first phase rotation to the reflection wave signal in accordance with the pattern.

公开(公告)号：US20240118382A1

公开(公告)日：2024-04-11

申请号：US18192627

申请日：2023-03-29

申请人： CALTERAH SEMICONDUCTOR TECHNOLOGY (SHANGHAI) CO., LTD.

发明人： Tao LIU ,  Jiashu CHEN ,  Zhengdong LIU ,  Wenting ZHOU

IPC分类号： G01S7/03 ,  G01S7/02 ,  G01S13/32

CPC分类号： G01S7/032 ,  G01S7/023 ,  G01S13/325

摘要： A phase shifting system, a chip, and a radar sensor are provided. A respective transmission line phase-shifting unit is configured to receive at least one phase shifting control signal and to shift a phase of a RF signal by a first phase or a second phase. Each transmission line phase-shifting unit includes a first group of transmission lines and a second group of transmission lines. At least some transmission lines in the first group of transmission lines of each transmission line phase-shifting unit are physically isolated from at least some transmission lines in the first group of transmission lines of an adjacent transmission line phase-shifting unit and transmission lines of the second group of transmission lines of each transmission line phase-shifting unit are coupled to respective transmission lines of the second group of transmission lines of an adjacent transmission line phase-shifting unit.

公开(公告)号：US11922792B2

公开(公告)日：2024-03-05

申请号：US17431606

申请日：2020-02-10

申请人： SIGNIFY HOLDING B.V.

发明人： Shoaib Hussain Khan ,  Fetze Pijlman

IPC分类号： G08B25/10 ,  G01S7/02 ,  G01S7/41 ,  G01S13/56 ,  G08B13/189 ,  H05B47/115

CPC分类号： G08B25/10 ,  G01S7/023 ,  G01S7/415 ,  G01S13/56 ,  G08B13/189 ,  H05B47/115

摘要： Some embodiments are directed to a motion detector (100) configured to signal-process a motion signal to obtain multiple motion components, a motion component being correlated with a direction and velocity of a motion in the environment, cancel in motion components, two motion components that correspond to motions with opposite directions, and detect motion in the environment from the motion components that are not cancelled.

公开(公告)号：US20240069155A1

公开(公告)日：2024-02-29

申请号：US18494685

申请日：2023-10-25

申请人： DENSO CORPORATION

发明人： Yusuke TAINAKA ,  Ryuji AOKI ,  Akihumi KURITA

IPC分类号： G01S7/03 ,  G01S7/02 ,  G01S13/931 ,  H01Q1/32 ,  H01Q1/42 ,  H01Q21/06

CPC分类号： G01S7/03 ,  G01S7/023 ,  G01S13/931 ,  H01Q1/3233 ,  H01Q1/42 ,  H01Q21/065 ,  G01S2013/93275

摘要： A radar apparatus includes an antenna unit, a cover portion, and a radio-wave suppression portion. The antenna unit includes an antenna surface in which one or more antennas that radiate radio waves are provided and is configured to emit a target radio wave of a predetermined frequency band. The cover portion is configured to be provided in a position through which the target radio wave passes. The radio-wave suppression portion is integrated with the cover portion in an out-of-detection-range area, of an outer surface of the cover portion, that is an area outside a range of a detection angle of the antenna portion, and includes a conductive portion that has conductivity and a non-conductive portion that does not have conductivity.

公开(公告)号：US20240069152A1

公开(公告)日：2024-02-29

申请号：US18272077

申请日：2021-01-22

申请人： Symeo GmbH

发明人： Sunrita Poddar ,  Peter Gulden ,  Ilker Bayram

IPC分类号： G01S7/02 ,  G01S7/35 ,  G01S13/931

CPC分类号： G01S7/023 ,  G01S7/356 ,  G01S13/931

摘要： Techniques to improve the detection and mitigation of synchronous and asynchronous interference in radar signals. The corrupted received signals can be processed to reduce the effect of interference, while preserving existing targets. Various can use a two-step approach to (1) detect and mask the corrupted samples, and (2) recover the masked-out samples. The recovery step enforces sparsity of the existing targets and prevents target smearing, which is a common problem after interference mitigation. The sparsity enforcing recovery step can preserve small targets while successfully rejecting interference. The techniques do not require any prior knowledge of the parameters of the interfering radar.