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：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.