CN112805595A - 一种激光雷达系统 - Google Patents

一种激光雷达系统 Download PDF

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CN112805595A
CN112805595A CN201980002458.1A CN201980002458A CN112805595A CN 112805595 A CN112805595 A CN 112805595A CN 201980002458 A CN201980002458 A CN 201980002458A CN 112805595 A CN112805595 A CN 112805595A
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laser
signal
reflected
signals
emitting
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CN112805595B (zh
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王超
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Suteng Innovation Technology Co Ltd
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Suteng Innovation Technology Co Ltd
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
    • G01S17/06—Systems determining position data of a target
    • G01S17/08—Systems determining position data of a target for measuring distance only
    • G01S17/32—Systems determining position data of a target for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
    • G01S7/483—Details of pulse systems
    • G01S7/484—Transmitters

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Optical Radar Systems And Details Thereof (AREA)

Abstract

本申请涉及一种激光雷达系统。激光雷达系统包括出射模块(100)、发射光学系统(200)、探测模块(300)和信号处理模块(400)。出射模块(100)产生并发射调制频率不同的多个出射激光信号。发射光学系统(200)将每一出射激光信号按照其对应的扫描角范围射向探测区域，使得所述多个出射激光信号出射后照亮整个所述探测区域。探测模块(300)接收并将所述多个反射激光信号分别转换成反射电信号。信号处理模块(400)根据接收到的每一反射电信号获取一相位偏移量，根据每一相位偏移量计算出与之对应的出射激光信号的测距值，从而实现利用调制频率较高的出射激光信号对近场探测区域进行探测，以及利用调制频率较低的出射激光信号对远场探测区域进行探测，实现具有较高的近场测距精度和较远的测距能力。

Description

PCT国内申请，说明书已公开。

Claims (19)

  1. PCT国内申请，权利要求书已公开。
CN201980002458.1A 2019-08-12 2019-08-12 一种激光雷达系统 Active CN112805595B (zh)

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PCT/CN2019/100132 WO2021026709A1 (zh) 2019-08-12 2019-08-12 一种激光雷达系统

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Cited By (3)

* Cited by examiner, † Cited by third party
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US20210149049A1 (en) * 2019-11-18 2021-05-20 Shenzhen Mileseey Technology Co., Ltd. Systems and methods for laser distance measurement
CN113759339A (zh) * 2021-11-10 2021-12-07 北京一径科技有限公司 一种回波信号的处理方法、装置、设备及存储介质
CN115210603A (zh) * 2021-10-20 2022-10-18 深圳市速腾聚创科技有限公司 激光雷达及激光雷达控制方法

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EP4379422A1 (en) * 2021-08-17 2024-06-05 Huawei Technologies Co., Ltd. Transceiver optical system, lidar, terminal device, and method and apparatus
CN114442071A (zh) * 2022-01-28 2022-05-06 深圳市欢创科技有限公司 一种激光发射电路、测距方法、激光雷达和机器人

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CN104035097A (zh) * 2014-07-01 2014-09-10 清华大学 一种阵列发射单元接收的无扫描三维激光探测装置及方法
WO2017205170A1 (en) * 2016-05-24 2017-11-30 Autoliv Asp, Inc. Direct detection lidar system and method with frequency modulation (fm) transmitter and quadrature receiver
CN107607961A (zh) * 2017-09-18 2018-01-19 西安理工大学 一种基于fpga的相位式激光测距系统和方法
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US5589928A (en) * 1994-09-01 1996-12-31 The Boeing Company Method and apparatus for measuring distance to a target
DE102014209375A1 (de) * 2014-05-16 2015-11-19 Robert Bosch Gmbh Mehrzielfähiger Laserentfernungsmesser
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CN104035097A (zh) * 2014-07-01 2014-09-10 清华大学 一种阵列发射单元接收的无扫描三维激光探测装置及方法
WO2017205170A1 (en) * 2016-05-24 2017-11-30 Autoliv Asp, Inc. Direct detection lidar system and method with frequency modulation (fm) transmitter and quadrature receiver
CN107607961A (zh) * 2017-09-18 2018-01-19 西安理工大学 一种基于fpga的相位式激光测距系统和方法
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CN109375237A (zh) * 2018-12-12 2019-02-22 北京华科博创科技有限公司 一种全固态面阵三维成像激光雷达系统

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张汉芯: "阵列激光测距系统调制与解调技术研究", 《中国优秀硕士学位论文全文数据库 信息科技辑》, pages 10 - 17 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210149049A1 (en) * 2019-11-18 2021-05-20 Shenzhen Mileseey Technology Co., Ltd. Systems and methods for laser distance measurement
US11747474B2 (en) * 2019-11-18 2023-09-05 Shenzhen Mileseey Technology Co., Ltd. Systems and methods for laser distance measurement
CN115210603A (zh) * 2021-10-20 2022-10-18 深圳市速腾聚创科技有限公司 激光雷达及激光雷达控制方法
CN115210603B (zh) * 2021-10-20 2023-06-23 深圳市速腾聚创科技有限公司 激光雷达及激光雷达控制方法
CN113759339A (zh) * 2021-11-10 2021-12-07 北京一径科技有限公司 一种回波信号的处理方法、装置、设备及存储介质

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