CN115004054A - 一种抗干扰测距装置以及方法 - Google Patents

一种抗干扰测距装置以及方法 Download PDF

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Publication number
CN115004054A
CN115004054A CN202080093633.5A CN202080093633A CN115004054A CN 115004054 A CN115004054 A CN 115004054A CN 202080093633 A CN202080093633 A CN 202080093633A CN 115004054 A CN115004054 A CN 115004054A
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China
Prior art keywords
signal
random number
phase
pulse
baseband signal
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Pending
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CN202080093633.5A
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English (en)
Inventor
罗鹏飞
董晨
周鸿彬
武雪飞
唐样洋
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Publication of CN115004054A publication Critical patent/CN115004054A/zh
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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
    • G01S17/36—Systems determining position data of a target for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated with phase comparison between the received signal and the contemporaneously transmitted signal
    • 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
    • G01S17/88—Lidar systems specially adapted for specific applications
    • G01S17/89—Lidar systems specially adapted for specific applications for mapping or imaging
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/125—Discriminating pulses
    • H03K5/1252—Suppression or limitation of noise or interference

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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)
  • Nonlinear Science (AREA)
  • Optical Radar Systems And Details Thereof (AREA)

Abstract

一种抗干扰测距装置以及方法，该装置包括脉冲位置调制器(1011)、与脉冲位置调制器(1011)连接的相移键控调制器(1012)；脉冲位置调制器(1011)用于根据随机数信号生成基带信号；随机数信号中每一种随机数对应一种基带信号的脉冲位置；当随机数信号中有多个连续相同的随机数时，在基带信号中多个连续相同的随机数对应的脉冲位置之间存在M个时间间隔；随机数信号和基带信号的相位同步；相移键控调制器(1012)用于将载波信号和基带信号进行调制以生成第一信号；第一信号用于驱动发光器(103)产生第一脉冲光以照射待测物。该抗干扰测距装置以及方法能够提高测距信号的抗干扰能力。

Description

PCT国内申请，说明书已公开。

Claims (25)

  1. PCT国内申请，权利要求书已公开。
CN202080093633.5A 2020-02-29 2020-02-29 一种抗干扰测距装置以及方法 Pending CN115004054A (zh)

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PCT/CN2020/077360 WO2021168866A1 (zh) 2020-02-29 2020-02-29 一种抗干扰测距装置以及方法

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WO (1) WO2021168866A1 (zh)

Cited By (1)

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WO2024061015A1 (zh) * 2022-09-22 2024-03-28 华为技术有限公司 一种信号处理方法与电子设备

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CN216870803U (zh) * 2021-12-25 2022-07-01 河南森源鸿马电动汽车有限公司 伪随机噪声雷达集成芯片
CN115857027A (zh) * 2022-10-20 2023-03-28 东莞市森威电子有限公司 一种管道测堵仪
CN116755073B (zh) * 2023-06-21 2024-03-26 上海雷骥电子科技有限公司 查找表解距离模糊的方法及应用

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CN101271154B (zh) * 2008-03-28 2011-04-27 天津大学 用于消除机器人超声测距系统串扰的超声激励方法
US9857469B2 (en) * 2010-10-22 2018-01-02 Heptagon Micro Optics Pte. Ltd. System and method for multi TOF camera operation using phase hopping
CN104730535A (zh) * 2015-03-20 2015-06-24 武汉科技大学 一种车载多普勒激光雷达距离测量方法
US9945936B2 (en) * 2015-05-27 2018-04-17 Microsoft Technology Licensing, Llc Reduction in camera to camera interference in depth measurements using spread spectrum
CN105785332B (zh) * 2016-03-07 2018-06-29 深圳承泰科技有限公司 一种雷达抗干扰方法
US10451713B2 (en) * 2016-09-16 2019-10-22 Analog Devices, Inc. Interference handling in time-of-flight depth sensing
US10215856B1 (en) * 2017-11-27 2019-02-26 Microsoft Technology Licensing, Llc Time of flight camera
CN109884611A (zh) * 2019-03-22 2019-06-14 北京未感科技有限公司 一种激光雷达抗干扰方法和装置
CN110233677A (zh) * 2019-05-20 2019-09-13 电子科技大学 一种基于光正交码的激光通信测距装置及方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024061015A1 (zh) * 2022-09-22 2024-03-28 华为技术有限公司 一种信号处理方法与电子设备

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