公开(公告)号：US20230176215A1

公开(公告)日：2023-06-08

申请号：US18161665

申请日：2023-01-30

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Menglin Li ,  Tonghui Liu ,  Tong Jiang

IPC: G01S17/42 ,  G01S7/487 ,  G01S17/89

CPC classification number: G01S17/42 ,  G01S7/487 ,  G01S17/89

Abstract: A laser radar and an intelligent vehicle are provided, and may be specifically applied to the field of intelligent vehicles. The laser radar may include: a laser, configured to generate a laser signal; a beam shaping module, configured to perform collimation on the laser signal (step 300); a beam splitting module, configured to perform beam splitting on a laser signal to obtain a sounding signal and a local-frequency signal (step 301); a receiving module, configured to receive echo information and transmit the echo signal to an optical frequency mixing module (step 302); the optical frequency mixing module, configured to perform optical frequency mixing on the local-frequency signal and the echo information to obtain a first beat frequency signal and a second beat frequency signal (step 303); and a differential receiving unit, configured to differentially receive the first beat frequency signal and the second beat frequency signal.

公开(公告)号：US20240313863A1

公开(公告)日：2024-09-19

申请号：US18658148

申请日：2024-05-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhongyang Xu ,  Shilong Pan ,  Tonghui Liu ,  Fengxi Yu ,  Menglin Li ,  Hongying Wu

IPC: H04B10/50 ,  H04B10/516

CPC classification number: H04B10/504 ,  H04B10/516

Abstract: A signal processing system includes a modulation system and a transmission system. The modulation system is configured to perform first modulation processing on a first subcarrier signal to obtain a second subcarrier signal. The modulation system is further configured to perform second modulation processing on the second subcarrier signal and a first signal light to obtain a transmission signal light. The transmission signal light includes a single-frequency optical carrier signal and an optical sideband signal, and a frequency band of the single-frequency optical carrier signal and a frequency band of the optical sideband signal do not completely overlap. The transmission system is configured to transmit the transmission signal light.