公开(公告)号：US20240361445A1

公开(公告)日：2024-10-31

申请号：US18139531

申请日：2023-04-26

申请人： NXP B.V.

发明人： Özgün Paker ,  Arie Geert Cornelis Koppelaar

IPC分类号： G01S13/72 ,  G01S7/41 ,  G01S13/931

CPC分类号： G01S13/726 ,  G01S7/415 ,  G01S13/931

摘要： A method includes producing, at a radar sensor, a plurality of radar data points based on radar signal reflections received at the radar sensor. The method further includes, for one or more respective radar data points of the plurality of radar data points, calculating at the radar sensor a data item indicative of a measurement accuracy corresponding to the respective radar data point. The radar sensor then transmits the plurality of radar data points and the data item for each respective radar data point to a central radar processor. The data item is used to update a covariance matrix implemented by a Kalman filter at the central radar processor during the object tracking process.

公开(公告)号：US12130379B2

公开(公告)日：2024-10-29

申请号：US17332995

申请日：2021-05-27

申请人： RichWave Technology Corp.

发明人： Wei-Min Liu ,  Po-Fu Wan ,  Han-Jieh Chang ,  Hsiang-Feng Chi

IPC分类号： G01S7/35 ,  G01S7/41 ,  G01S13/56 ,  G01S13/62

CPC分类号： G01S7/354 ,  G01S7/356 ,  G01S7/415 ,  G01S13/56 ,  G01S13/62

摘要： An object recognition method includes generating Doppler spectrogram data according to an echo signal, the echo signal being relating to an object; transforming N sets of time-domain data of the Doppler spectrogram data corresponding to N velocities into N sets of cadence spectrogram data, respectively; combining the N sets of spectrogram data to obtain 1D/2D cadence spectrum data, and acquiring a series of cadence feature from the 1D/2D cadence spectrum data to recognize the object.

公开(公告)号：US20240353554A1

公开(公告)日：2024-10-24

申请号：US18615112

申请日：2024-03-25

申请人： LOGIKA SYSTEMS INC.

发明人： Daniel Sego ,  Paul Ream

IPC分类号： G01S13/72 ,  G01S7/02 ,  G01S7/40 ,  G01S7/41 ,  G01S13/88

CPC分类号： G01S13/72 ,  G01S7/027 ,  G01S7/4026 ,  G01S7/4056 ,  G01S7/415 ,  G01S13/88

摘要： The present invention discloses a single radar strip centering system for measuring the position and width of a continuous metal strip during processing in order to adjust the position of the strip to meet or maintain centering. The single radar strip centering system includes a radar and a reflector positioned apart from one another. The reflector is provided with a spherical surface. The single radar strip centering system includes the strip placed in between the radar and the reflector. The strip includes a near wall and far wall. The strip includes a leading edge and trailing edge. The radar emits beams. The spherical surface on the reflector augments and shapes the scattered energy from the far wall. The radar simultaneously illuminates the leading edge and the reflector. The reflector redirects the transmitted energy toward the trailing edge and reflects radar energy scattered off the trailing edge back toward the radar.

公开(公告)号：US20240353532A1

公开(公告)日：2024-10-24

申请号：US18642484

申请日：2024-04-22

申请人： Meta Platforms Technologies, LLC

发明人： John Ho ,  Jiang Zhu ,  Boon Shiu ,  Paurakh Rajbhandary ,  Yuge Huang ,  Lu Lu ,  Junren Wang ,  Mengfei Wang ,  Xiayu Feng ,  Zhexin Zhao ,  Steven Alexander-Boyd Hickman ,  Tingling Rao ,  Kimberly Kay Childress ,  Amir Shariffar ,  Sadegh Aghaei ,  Zhaoyu Nie ,  Prathmesh Deshmukh ,  Zhaocheng Liu ,  Raymond Smith, II ,  Andrew John Ouderkirk ,  Sawyer Miller ,  Hsien-Hui Cheng ,  Xuan Wang ,  Ali Altaqui ,  Zhuoliang Ni

IPC分类号： G01S7/41 ,  A61B5/024 ,  G02B27/01 ,  G03H1/02

CPC分类号： G01S7/412 ,  A61B5/024 ,  G01S7/415 ,  G02B27/0172 ,  G03H1/0248 ,  G02B2027/0174 ,  G02B2027/0178 ,  G03H2001/026 ,  G03H2250/38

摘要： A computer-implemented method may include (1) causing a radar component to emit one or more radar signals and (2) causing the radar component to analyze one or more return signals. Also disclosed is a method for forming a 3D liquid crystal polarization hologram optical element and a method for characterizing diffractive waveguides includes directing light onto a structure and measuring the diffracted light to capture at least one image of the structure. Lastly, disclosed is a method of pattering organic solid crystals and a method directing a beam of input light to a surface of an optical material to determine crystallographic and optical parameters of the optical material. Various other methods, systems, and computer-readable media are also disclosed.

公开(公告)号：US12117560B2

公开(公告)日：2024-10-15

申请号：US17394241

申请日：2021-08-04

申请人： Google LLC

发明人： Nicholas Edward Gillian ,  Carsten C. Schwesig ,  Jaime Lien ,  Patrick M. Amihood ,  Ivan Poupyrev

IPC分类号： G01S7/41 ,  A63F13/21 ,  A63F13/24 ,  G01S7/40 ,  G01S13/56 ,  G01S13/66 ,  G01S13/86 ,  G01S13/88 ,  G01S13/90 ,  G06F3/01 ,  G06F3/04815 ,  G06F16/245 ,  G06F18/21 ,  G06F18/25 ,  G06F18/28 ,  G06F18/40 ,  G06F21/32 ,  G06F21/62 ,  G06N20/00 ,  G06V10/80 ,  G06V20/64 ,  G06V40/20 ,  H04Q9/00 ,  H04W4/80 ,  H04W16/28 ,  G01S13/931 ,  G01S19/42 ,  G06F1/16 ,  G06F3/0346 ,  G06F3/0484 ,  G06F3/16 ,  G06T7/73 ,  G08C17/02

CPC分类号： G01S7/415 ,  A63F13/21 ,  A63F13/24 ,  G01S7/4004 ,  G01S7/41 ,  G01S7/412 ,  G01S13/56 ,  G01S13/66 ,  G01S13/86 ,  G01S13/867 ,  G01S13/88 ,  G01S13/888 ,  G01S13/90 ,  G01S13/904 ,  G06F3/011 ,  G06F3/017 ,  G06F3/04815 ,  G06F16/245 ,  G06F18/217 ,  G06F18/25 ,  G06F18/253 ,  G06F18/28 ,  G06F18/41 ,  G06F21/32 ,  G06F21/6245 ,  G06N20/00 ,  G06V10/806 ,  G06V20/64 ,  G06V40/28 ,  H04Q9/00 ,  H04W4/80 ,  H04W16/28 ,  A63F2300/8082 ,  G01S13/865 ,  G01S13/931 ,  G01S2013/9322 ,  G01S19/42 ,  G06F1/163 ,  G06F3/0346 ,  G06F3/0484 ,  G06F3/165 ,  G06F2203/0384 ,  G06F2221/2105 ,  G06T7/75 ,  G08C17/02 ,  G08C2201/93 ,  H04Q2209/883

摘要： This document describes apparatuses and techniques for radar-enabled sensor fusion. In some aspects, a radar field is provided and reflection signals that correspond to a target in the radar field are received. The reflection signals are transformed to provide radar data, from which a radar feature indicating a physical characteristic of the target is extracted. Based on the radar features, a sensor is activated to provide supplemental sensor data associated with the physical characteristic. The radar feature is then augmented with the supplemental sensor data to enhance the radar feature, such as by increasing an accuracy or resolution of the radar feature. By so doing, performance of sensor-based applications, which rely on the enhanced radar features, can be improved.

公开(公告)号：US12110013B2

公开(公告)日：2024-10-08

申请号：US17961885

申请日：2022-10-07

申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC

发明人： Oded Bialer ,  Siddhartha Gupta

IPC分类号： B60W30/00 ,  B60W30/095 ,  G01S7/41 ,  G01S13/52 ,  G01S13/86 ,  G01S13/931

CPC分类号： B60W30/0956 ,  G01S7/415 ,  G01S13/52 ,  G01S13/867 ,  G01S13/931 ,  B60W2420/403 ,  B60W2420/408 ,  B60W2554/4029 ,  B60W2554/4044 ,  B60W2554/4045 ,  B60W2554/801 ,  B60W2556/40 ,  B60W2720/106 ,  B60W2720/24 ,  G01S2013/9318 ,  G01S2013/93185

摘要： A system of controlling operation of a vehicle includes one or more sensors operatively connected to the vehicle. The sensors are configured to obtain respective data of a scene and include a radar unit. A command unit is adapted to receive the respective data and includes a processor and tangible, non-transitory memory on which instructions are recorded. The command unit is configured to determine an orientation angle of a pedestrian in the scene, a Doppler frequency of the pedestrian and a distance of the pedestrian from a border of a road, based in part on the respective data. The orientation angle is based on a heading of the pedestrian relative to a direction of a road. The command unit is configured to designate a status of the pedestrian as either crossing or not crossing based on the distance, the orientation angle and the Doppler frequency of the pedestrian.

公开(公告)号：US12105184B2

公开(公告)日：2024-10-01

申请号：US17988705

申请日：2022-11-16

申请人： TOPGOLF SWEDEN AB

发明人： Jonny Eriksson

IPC分类号： G01S13/62 ,  G01S7/41 ,  G01S13/58 ,  G01S13/72

CPC分类号： G01S13/62 ,  G01S13/583 ,  G01S7/415 ,  G01S13/584 ,  G01S13/723

摘要： A method for estimating a spin of a projectile, the method comprising obtaining a first data series representing a radial velocity of a projectile over time in accordance with a radar signal reflected from the projectile, subtracting a center velocity of the first data series from the first data series to form a second data series representing a variation of the radial velocity of the projectile around the center velocity over time, dividing the second data series into respective time intervals, estimating, for each of the time intervals of the second data series, a frequency of the variation of the radial velocity of the projectile around the center velocity, and determining a spin of the projectile based on the estimated frequencies of the variation of the radial velocity of the projectile.

公开(公告)号：US12072441B2

公开(公告)日：2024-08-27

申请号：US18057441

申请日：2022-11-21

申请人： Commissariat à l'énergie atomique et aux énergies alternatives ,  Centre national de la recherche scientifique

发明人： Luis-Felipe Fonseca-Dias ,  Camille Jouvaud ,  Christophe Delaveaud ,  Hervé Aubert

IPC分类号： G01S7/41

CPC分类号： G01S7/415

摘要： A device for measuring a physical quantity, including at least a transceiver unit for electromagnetic waves, an antenna-sensor including a sensor integrated into a target antenna having at least one excitation port, the antenna-sensor having a variable impedance with electromagnetic transduction, the measuring device being configured, per predetermined frequency band and independently of the angular difference between the transmission and reception of waves, for measuring the electromagnetic response of the antenna-sensor at least from an ellipticity rate of an electromagnetic field backscattered by the antenna-sensor, the ellipticity rate characterizing the polarization of the electromagnetic field configured to be measured by the transceiver unit, the electromagnetic response being representative, by electromagnetic transduction, of the at least one physical quantity to be measured.

公开(公告)号：US20240280668A1

公开(公告)日：2024-08-22

申请号：US18560250

申请日：2022-05-10

申请人： THE SECRETARY OF STATE FOR DEFENCE

发明人： Andrew Paul Speed

IPC分类号： G01S7/41 ,  H04W84/12

CPC分类号： G01S7/415 ,  H04W84/12

摘要： A computer implemented method of detecting a drone 200 from a micro-Doppler signature. The method comprising the steps of controlling a computer processor to perform the steps of: receiving signal data of a re-radiated signal 303 from a wireless communication device 212 on a drone 200 following stimulation of the wireless communication device 212 by a predetermined signal 301. Applying a detection operation to the re-radiated signal 303 data to detect a micro-Doppler signature. Wherein the detection operation comprises applying a predetermined criterion for distinguishing at least one known micro-Doppler signature of a wireless communication device on a drone, from at least one known signature of a wireless communication device that is not on a drone. Declaring the detection of a drone 200 in response to a positive detection based on the predetermined criterion. Characterised in that: the re-radiated signal 303 comprises fundamental component 400 and harmonic components 410/420. The frequency of the harmonic components 410/420 being substantially N integer multiples of the fundamental component 400; wherein N is greater than 1. The computer processor performs the further steps of: extracting harmonic component 410/420 data from the re-radiated signal 303 data; and then applying the detection operation to the harmonic component 410/420 data. The method provides higher confidence and fidelity in detection of a drone than approaches of the prior art.

公开(公告)号：US12066572B2

公开(公告)日：2024-08-20

申请号：US17539058

申请日：2021-11-30

申请人： Sai Deepika Regani ,  Qinyi Xu ,  Beibei Wang ,  Min Wu ,  Oscar Chi-Lim Au ,  K. J. Ray Liu

发明人： Sai Deepika Regani ,  Qinyi Xu ,  Beibei Wang ,  Min Wu ,  Oscar Chi-Lim Au ,  K. J. Ray Liu

IPC分类号： G01S7/41 ,  G01S7/00 ,  G01S13/00 ,  G06N3/04

CPC分类号： G01S7/412 ,  G01S7/006 ,  G01S7/415 ,  G01S13/003 ,  G06N3/04 ,  G06F2218/00

摘要： Methods, apparatus and systems for monitoring an object expression are described. In one example, a described apparatus in a venue comprises a receiver and a processor. The receiver is configured for: receiving a wireless signal from a transmitter through a wireless multipath channel that is impacted by an expression of an object in the venue, wherein the object has at least one movable part and is expressed in the expression with respect to a setup in the venue; and obtaining a time series of channel information (TSCI) of the wireless multipath channel based on the wireless signal received by the receiver. The processor is configured for computing information associated with the object based at least partially on the TSCI obtained when the object is expressed in the expression, and performing, based on the information associated with the object, a task associated with at least one of the object and the venue.