公开(公告)号：US20240219516A1

公开(公告)日：2024-07-04

申请号：US18069577

申请日：2022-12-21

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Dejian LI ,  Dapeng Lao ,  Chen Yang ,  Ben Wang ,  Jintai Zhu

IPC: G01S7/35 ,  G01S13/536 ,  G01S13/56

CPC classification number: G01S7/354 ,  G01S7/356 ,  G01S13/536 ,  G01S13/56 ,  G01S13/931

Abstract: A target detection method and apparatus, a radar, and a vehicle are provided, and relate to the field of radar technologies. The method includes: obtaining a signal spectrum based on a received signal of a receive antenna of the radar; reconstructing a received signal corresponding to a target that is in the signal spectrum and that is greater than or equal to a signal strength threshold; eliminating a reconstructed received signal in the signal spectrum to obtain an updated signal spectrum, where the updated signal spectrum represents a signal spectrum that does not include the target; determining, in the updated signal spectrum, a parameter of a target that is greater than or equal to the signal strength threshold; and obtaining at least one of location information or speed information of the determined target based on the determined parameter of the target.

公开(公告)号：US20230184886A1

公开(公告)日：2023-06-15

申请号：US18164398

申请日：2023-02-03

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jintai Zhu ,  Dapeng Lao ,  Dejian Li ,  Jinnan Liu ,  Ben Wang

IPC: G01S7/35 ,  G01S13/58

CPC classification number: G01S7/356 ,  G01S13/584

Abstract: This disclosure provides a signal processing method and apparatus. The method includes: obtaining Nr1×M1 signals, where the Nr1×M1 signals are echo signals of M1 signals that are sent by a radar to a target in a SIMO mode; obtaining Nt×Nr2×M2 signals, where the Nt×Nr2×M2 signals are echo signals of M2 signals that are sent by the radar to the target in a MIMO mode; performing first signal processing on the Nr1×M1 signals to obtain first processing data, where the first signal processing includes sequentially performing range FFT analysis, linear prediction, and Doppler FFT analysis; performing second signal processing on the Nt×Nr2×M2 signals to obtain second processing data, where the second signal processing includes range FFT analysis and Doppler FFT analysis; and performing velocity matching ambiguity resolution processing based on the first processing data and the second processing data.

公开(公告)号：US20220214442A1

公开(公告)日：2022-07-07

申请号：US17703081

申请日：2022-03-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ben Wang ,  Dejian Li ,  Jintai Zhu ,  Dapeng Lao

IPC: G01S13/58 ,  H04B1/69 ,  H04B7/0413 ,  G01S13/92

Abstract: A velocity measurement signal transmission and receiving method for an intelligent driving system includes generating a plurality of chirp signals for measuring moving velocities of one or more moving targets (301); and transmitting the plurality of chirp signals in a time-division multiplexing (TDM) repetition cycle by using M antennas (302), where the TDM repetition cycle includes one single-antenna transmit mode sub-cycle and L consecutive multi-antenna transmit mode sub-cycles.

公开(公告)号：US12216220B2

公开(公告)日：2025-02-04

申请号：US17848652

申请日：2022-06-24

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ben Wang ,  Dejian Li

IPC: G01S3/14

Abstract: A method and apparatus for measuring an angle of arrival. The method includes: determining L×N values based on received values obtained by a first antenna array and a second antenna array by receiving a signal and determining an angle of arrival (AoA) of the first signal based on the L×N values. The first antenna array includes L rows of array elements arranged in a first direction and K columns of array elements arranged in a second direction. The second antenna array includes P rows of array elements arranged in the first direction and Q columns of array elements arranged in the second direction. N=K+Q. An included angle between the first direction and the second direction is greater than 0 degrees.

公开(公告)号：US20220146623A1

公开(公告)日：2022-05-12

申请号：US17581176

申请日：2022-01-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Dapeng Lao ,  Jinnan Liu ,  Ben Wang ,  Mu Zhou

IPC: G01S7/03 ,  G01S13/06 ,  G01S13/931

Abstract: A radar system (400) and a vehicle are provided, so that when high angular resolution is obtained, a quantity of transmit antennas and a quantity of receive antennas are reduced, to reduce design and processing difficulty. The radar system (400) includes: a transmitter (401), configured to transmit a radar signal; and a receiver (402), configured to receive an echo signal obtained after the radar signal is reflected by a target, where a transmit antenna array of the transmitter (401) and a receive antenna array of the receiver (402) are used to form a virtual linear array and a virtual planar array, the virtual linear array includes a uniform linear array in a first direction, the virtual planar array includes a uniform planar array, and a first spacing between two adjacent array elements in the uniform linear array is less than a second spacing between two adjacent array elements in the first direction in the uniform planar array.