公开(公告)号：US20230341525A1

公开(公告)日：2023-10-26

申请号：US18345739

申请日：2023-06-30

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xuan HU ,  Guangyao YANG ,  Xianling SHI ,  Zhizhen HUANG

IPC: G01S7/481 ,  G01S17/42

CPC classification number: G01S7/4817 ,  G01S17/42 ,  G01S7/4818

Abstract: An example detection apparatus includes a sending and receiving assembly, configured to transmit N emitted sub-beams to target scanning space at different emission angles, and converge N reflected sub-beams into a reflected beam, where wavelengths of the N emitted sub-beams are different from each other. The emission angles correspond to the wavelengths of the emitted sub-beams, the N reflected sub-beams are beams formed through reflection after the N emitted sub-beams detect at least one detection object, and N is a positive integer greater than 1. The detection apparatus includes a wavelength division assembly, configured to obtain, based on the reflected beam, the N reflected sub-beams corresponding to different wavelengths. The detection apparatus includes a detector array, configured to output corresponding electrical signals based on the N reflected sub-beams from the wavelength division assembly, where the detector array includes N detectors, and the N detectors correspond to the N reflected sub-beams.

公开(公告)号：US20230243949A1

公开(公告)日：2023-08-03

申请号：US18191526

申请日：2023-03-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Erjiang HAN ,  Xianling SHI

IPC: G01S13/10 ,  G01S7/41

CPC classification number: G01S13/103 ,  G01S7/411 ,  G01S7/414

Abstract: This application provides radar ranging method and apparatuses. In an implementation, a method comprises: sending a first radar signal through a first transmitter, receiving a first echo signal of the first radar signal through a first receiver, wherein the first echo signal comprises an echo signal of a first target, receiving a second echo signal of the first radar signal through a second receiver, wherein the second receiver is located outside a primary signal transmission path between the first transmitter and the first receiver, wherein the second echo signal is used to determine a target spurious echo signal corresponding to an obstacle, and wherein the echo signal of the first target and the target spurious echo signal are different signals, and performing ranging processing on the first target based on the first echo signal and the second echo signal.

公开(公告)号：US20240264286A1

公开(公告)日：2024-08-08

申请号：US18626820

申请日：2024-04-04

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yilun ZHOU ,  Xianling SHI ,  Guoliang CAO ,  Zhizhen HUANG ,  Anliang YU

IPC: G01S7/4865 ,  G01S7/484 ,  G01S17/10

CPC classification number: G01S7/4866 ,  G01S7/484 ,  G01S17/10

Abstract: Example control methods and apparatuses, example LiDARs, and example terminal devices are provided. One example method includes controlling a transmitter to transmit a first pulse train, where the first pulse train includes M1 first-type pulses and M2 second-type pulses, M1 is an integer greater than 1, and M2 is a positive integer. The transmitter is controlled to transmit a second pulse train, where the second pulse train includes at least one of M3 first-type pulses or Ma second-type pulses, where a power of a first-type pulse is greater than a power of a second-type pulse, and where the second pulse train and the first pulse train have different transmission time periods, or correspond to different sub-emitters, or correspond to different pixels in a detection field of view, or correspond to different detection fields of view, or correspond to different sub-receivers.

公开(公告)号：US20240012120A1

公开(公告)日：2024-01-11

申请号：US18371921

申请日：2023-09-22

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Erjiang HAN ,  Xianling SHI ,  Guoliang CAO

IPC: G01S7/487 ,  G01S17/08

CPC classification number: G01S7/4873 ,  G01S17/08

Abstract: This application is applied to the autonomous driving field, and provides a signal receiving apparatus, a detection apparatus, and a signal processing method and apparatus. The receiving apparatus includes a first receiving branch; the first receiving branch includes a first detector and a signal coupling apparatus; the first detector is configured to output one branch of echo electrical signal; the signal coupling apparatus outputs at least two branches of echo electrical signals based on the branch of echo electrical signal output by the first detector; and one branch of echo electrical signal in the at least two branches of echo electrical signals has same signal strength as the branch of echo electrical signal output by the first detector.

公开(公告)号：US20230400559A1

公开(公告)日：2023-12-14

申请号：US18452403

申请日：2023-08-18

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Guangyao YANG ,  Xuan HU ,  Xianling SHI ,  Zhizhen HUANG

IPC: G01S7/4911 ,  G01S7/481 ,  G01S17/931

CPC classification number: G01S7/4911 ,  G01S7/4818 ,  G01S7/4814 ,  G01S7/4816 ,  G01S7/4817 ,  G01S17/931

Abstract: The present disclosure relates to detection apparatuses. One example detection apparatus includes a light source configured to emit a continuous laser beam, a modulator configured to modulate the continuous laser beam from the light source module to obtain a first laser beam including a carrier signal and symmetric side band signals, a first wavelength selector configured to allow at least one side band signal in the symmetric side band signals to pass through and prevent the carrier signal from passing through to obtain a second laser beam, and an optical transceiver configured to emit the second laser beam to a detection area, and receive a first echo signal for the second laser beam. The first echo signal includes the at least one side band signal, and a first side band signal is used to detect a target.

公开(公告)号：US20230003855A1

公开(公告)日：2023-01-05

申请号：US17942380

申请日：2022-09-12

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xuan HU ,  Xianling SHI ,  Zhizhen HUANG

IPC: G01S7/497 ,  G01S17/89

Abstract: A method and an apparatus for calibrating a parameter of a laser radar are provided. The cost function used to determine the predicted value of the first parameter is determined based on the three-dimensional coordinates of the sampling points and the fitting function for the sampling points. The fitting function for the plurality of sampling points uses the first parameter as an independent variable.