公开(公告)号：US12092721B2

公开(公告)日：2024-09-17

申请号：US17330477

申请日：2021-05-26

Applicant: Texas Instruments Incorporated

Inventor： Sachin Bharadwaj ,  Sriram Murali

IPC: G01S13/42 ,  G01S13/34 ,  G01S13/58 ,  G01S13/931 ,  G01S7/288

CPC classification number: G01S13/42 ,  G01S13/343 ,  G01S13/931 ,  G01S7/288 ,  G01S7/2883 ,  G01S13/583

Abstract: A multi-mode radar system, radar signal processing methods and configuration methods, including using predetermined, range/mode-specific pushing windows to perform windowing on range and velocity object data before performing an FFT on the windowed object data matrix to generate a three-dimensional object matrix including range, velocity and angle data. The individual windows have an angular spectral response that corresponds to a combined angular coverage field of view of the transmit and receive antennas for the corresponding mode to minimize the total weighted energy outside the main lobe and to provide increasing spectral leakage outside the combined angular coverage field of view with angular offset from the main lobe to push out much of the spectral leakage into regions where leakage tolerance is high due to the corresponding combined angular coverage field of view of the transmit and receive antennas.

公开(公告)号：US12072409B2

公开(公告)日：2024-08-27

申请号：US18481854

申请日：2023-10-05

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kenta Iwasa ,  Hidekuni Yomo

IPC: G01S13/00 ,  G01S7/03 ,  G01S7/282 ,  G01S7/285 ,  G01S13/42 ,  G01S13/87 ,  G01S13/931 ,  H01Q1/32 ,  H01Q3/26 ,  H01Q21/06 ,  H01Q21/29

CPC classification number: G01S13/003 ,  G01S7/03 ,  G01S7/032 ,  G01S7/282 ,  G01S7/285 ,  G01S13/42 ,  G01S13/878 ,  H01Q1/3233 ,  H01Q3/2605 ,  H01Q21/061 ,  H01Q21/293 ,  G01S13/931

Abstract: One of a transmitting array antenna and a receiving array antenna includes a first antenna group and a second antenna group. The first antenna group includes one or more first antenna elements of which the phase centers of the antenna elements are laid out at each first layout spacing following a first axis direction, and a shared antenna element. The second antenna group includes a plurality of second antenna elements and the one shared antenna element, and the phase centers of the antenna elements are laid out in two columns at each second layout spacing following a second axis direction that is different from the first axis direction. The phase centers of the antenna elements included in each of the two columns differ from each other regarding position in the second axis direction.

公开(公告)号：US12061250B2

公开(公告)日：2024-08-13

申请号：US17386771

申请日：2021-07-28

Applicant: VOLKSWAGEN AKTIENGESELLSCHAFT

Inventor： Bernd Ette

IPC: G01S13/04 ,  G01S13/42

CPC classification number: G01S13/04 ,  G01S13/42

Abstract: A method for detecting people and/or objects in the interior of a transportation vehicle, wherein people and/or objects in the interior of the transportation vehicle are detected by at least two UWB antennas which are each arranged in or on different doors of the transportation vehicle and used for communication with at least one ID transmitter and/or a remote control, at least for locking and unlocking the doors, and wherein signals acquired using the at least two UWB antennas are evaluated via a control device and an evaluation result is delivered. Also disclosed is a transportation vehicle.

公开(公告)号：US20240241243A1

公开(公告)日：2024-07-18

申请号：US18155722

申请日：2023-01-17

Applicant: Aptiv Technologies Limited

Inventor： Yu Zhang ,  Zhengzheng Li ,  Xin Zhang ,  Yujie Gu

IPC: G01S13/42 ,  G01S7/03 ,  G01S13/931

CPC classification number: G01S13/42 ,  G01S7/03 ,  G01S13/931

Abstract: This document describes techniques and systems to enable a radar system to jointly detect DoA and DoD angles in multipath scenarios. In some examples, an automotive radar system includes one or more processors. The processors obtain electromagnetic (EM) energy reflected by objects and generate, based on the reflected EM energy, a two-dimensional (2D) data matrix. The 2D data matrix has a number of rows corresponding to the number of antenna elements in a transmitter array and a number of columns corresponding to the number of antenna elements in a receiver array. Using the 2D data matrix, the processors can determine DoA estimates and DoD estimates in both monostatic and bistatic reflection scenarios. By comparing the DoA estimates to the DoD estimates, the processors determine angles associated with the objects with improved angular resolution and reduced cost.

公开(公告)号：US11994580B2

公开(公告)日：2024-05-28

申请号：US17375418

申请日：2021-07-14

Applicant: Quanta Computer Inc.

Inventor： Tsung-Ying Hsieh ,  Chi-Hsuan Lee

IPC: G01S13/90 ,  G01S13/04 ,  G01S13/42 ,  G01S13/87

CPC classification number: G01S13/90 ,  G01S13/04 ,  G01S13/42 ,  G01S13/87

Abstract: An electronic device includes a plurality of radars and at least one processor. Each of the radars includes at least one transmitting antenna and a plurality of receiving antennas arranged as a two-dimensional array antenna. The processor converts the RF signal received by the receiving antennas into a ranging profile that records the distance between each of the receiving antennas and the target and the receiving intensity corresponding to the distance. The processor generates a voxel profile to indicate the relationship between the distance and the receiving intensity in three-dimensional space. The processor performs a point generation algorithm to generate a plurality of points in three-dimensional space according to the voxel profile and the receiving intensity threshold. The processor performs a cluster analysis algorithm to identify a plurality of target points corresponding to the target among the points to obtain the position of the target.

公开(公告)号：US20240159892A1

公开(公告)日：2024-05-16

申请号：US18280729

申请日：2022-06-09

Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.

Inventor： Young-Seo PARK ,  Han-Sang CHO ,  Ki-Bong CHONG ,  Byong-Hyok CHOI

IPC: G01S13/931 ,  G01S7/35 ,  G01S13/42 ,  G01S13/46

CPC classification number: G01S13/931 ,  G01S7/354 ,  G01S13/42 ,  G01S2013/464

Abstract: A non-line-of-sight radar apparatus includes a first radar receiver to convert a first frequency radar signal received through a non-line-of-sight into a digital signal and to output a first path signal; a first signal processor to receive a second path signal from a direct-line-of-sight detection apparatus detecting a direct-line-of-sight, to cancel a direct-line-of-sight signal irrelevant to the non-line-of-sight included in the first path signal using the second path signal, and to extract a non-line-of-sight signal; and a first signal detector to detect an object on a non-line-of-sight based on the non-line-of-sight signal.

公开(公告)号：US20240159887A1

公开(公告)日：2024-05-16

申请号：US18215661

申请日：2023-06-28

Applicant: Matawave Corporation

Inventor： Abdullah Ahsan ZAIDI

IPC: G01S13/42 ,  G01S7/35 ,  G01S7/41 ,  G01S13/931

CPC classification number: G01S13/426 ,  G01S7/35 ,  G01S7/412 ,  G01S13/931 ,  G01S7/417 ,  G01S13/343 ,  G01S13/42

Abstract: Examples disclosed herein relate to a beam steering radar for use in an autonomous vehicle. The beam steering radar has a radar module with at least one beam steering antenna, a transceiver, and a controller that can cause the transceiver to perform, using the at least one beam steering antenna, a first scan of a field-of-view (FoV) with a first number of chirps in a first radio frequency (RF) signal and a second scan of the FoV with a second number of chirps in a second RF signal. The radar module also has a perception module having a machine learning-trained classifier that can detect objects in a path and surrounding environment of the autonomous vehicle based on the first number of chirps in the first RF signal and classify the objects based on the second number of chirps in the second RF signal.

公开(公告)号：US20240125925A1

公开(公告)日：2024-04-18

申请号：US18321351

申请日：2023-05-22

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sungdo CHOI ,  Seung Tae KHANG ,  Jong-Sok KIM ,  Jinyong JEON ,  Young Rae CHO

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

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

Abstract: A method of predicting a movement of a cut-in object, including separating a Doppler velocity corresponding to at least one wheel of the cut-in object from radar data based on a velocity of the cut-in object, determining a position of the at least one wheel of the cut-in object based on the Doppler velocity, generating at least one of first movement information related to a horizontal movement of the cut-in object or second movement information related to a moving direction of the cut-in object based on the position of the at least one wheel, and determining a position of the cut-in object based on at least one of the first movement information or the second movement information.

公开(公告)号：US20240118404A1

公开(公告)日：2024-04-11

申请号：US18469949

申请日：2023-09-19

Applicant: NXP B.V.

Inventor： Arie Geert Cornelis Koppelaar ,  Marco Jan Gerrit Bekooij

IPC: G01S13/42 ,  G01S7/35 ,  G01S13/00

CPC classification number: G01S13/42 ,  G01S7/352 ,  G01S13/006

Abstract: An apparatus configured to:



receive an input dataset indicative of radar signals, reflected from targets, received at an antenna;
determine an objective function for evaluation over a plurality of points of a search space representing possible direction-of-arrival angles;
evaluate the objective function for a first candidate number of targets;
perform a first evaluation of a branch metric function based on a second candidate number of targets, wherein the branch metric function is indicative of a change in the objective function; and
if the branch metric function is greater than a predetermined threshold, then evaluate the objective function for the second candidate number of targets;
if the branch metric function is less than the predetermined threshold, then evaluate the objective function for the first candidate number of targets, wherein the evaluation is based on at least one of the first candidate number of targets having a different, second candidate direction-of-arrival angle.

公开(公告)号：US11953584B2

公开(公告)日：2024-04-09

申请号：US17257539

申请日：2019-07-03

Applicant: University of Massachusetts ,  Matthew J. Curtis ,  Murilo Souza Silva, Jr.

Inventor： Dayalan P. Kasilingam ,  Matthew J. Curtis ,  Murilo Souza Silva, Jr.

IPC: G01S13/42 ,  G01S3/74 ,  G01S7/292 ,  G01S7/41

CPC classification number: G01S13/42 ,  G01S3/74 ,  G01S7/2925 ,  G01S7/2926 ,  G01S7/41

Abstract: System, computer products, and methods can improve the resolution of data from a sensor array. One of these methods include receiving, from an analog to digital converter, a series of measurements representing frequency samples and spatial samples from a sensor array. The method includes generating a plurality of factors based on a polynomial. The method includes applying one or more complex weights to the measurements based on the factors. The method includes combining the complex weighted measurements into a plurality of values. The method also includes identifying a characteristic of an object detected by the sensor array based on the plurality of values.