CN114391112A - 激光测距方法、测距装置和可移动平台 - Google Patents

激光测距方法、测距装置和可移动平台 Download PDF

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Publication number
CN114391112A
CN114391112A CN202080013349.2A CN202080013349A CN114391112A CN 114391112 A CN114391112 A CN 114391112A CN 202080013349 A CN202080013349 A CN 202080013349A CN 114391112 A CN114391112 A CN 114391112A
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time interval
pulse signal
preset
return light
pulse signals
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许友
王栗
梅雄泽
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SZ DJI Technology Co Ltd
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SZ DJI Technology Co Ltd
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Publication of CN114391112A publication Critical patent/CN114391112A/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
    • 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
    • G01S7/495—Counter-measures or counter-counter-measures using electronic or electro-optical means

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

Abstract

一种激光测距方法、测距装置(100)和可移动平台，该方法包括：按照预设时间间隔连续发射至少两个激光脉冲信号(S610)；接收回光脉冲信号，并确定回光脉冲信号的接收时间(S620)；根据预设时间间隔和接收时间在回光脉冲信号中确定至少两个激光脉冲信号经被测物反射回的有效回光脉冲信号(S630)；根据有效回光脉冲信号的接收时间确定测距装置(100)与被测物之间的距离(S640)，通过连续发射至少两个激光脉冲信号，并根据回光脉冲信号的接收时间提取回光脉冲信号中的有效回光脉冲信号，从而有效地识别和过滤干扰信号，提高了测距装置(100)的鲁棒性和抗干扰能力。

Description

PCT国内申请，说明书已公开。

Claims (35)

  1. PCT国内申请，权利要求书已公开。
CN202080013349.2A 2020-08-21 2020-08-21 激光测距方法、测距装置和可移动平台 Pending CN114391112A (zh)

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PCT/CN2020/110606 WO2022036714A1 (zh) 2020-08-21 2020-08-21 激光测距方法、测距装置和可移动平台

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CN114391112A true CN114391112A (zh) 2022-04-22

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CN (1) CN114391112A (zh)
WO (1) WO2022036714A1 (zh)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT511310B1 (de) * 2011-04-07 2013-05-15 Riegl Laser Measurement Sys Verfahren zur entfernungsmessung
CN109683171A (zh) * 2017-10-19 2019-04-26 上海禾赛光电科技有限公司 激光雷达及其测距方法
WO2019113723A1 (zh) * 2017-12-11 2019-06-20 深圳前海达闼云端智能科技有限公司 激光探测方法及系统
CN108226904B (zh) * 2017-12-22 2019-07-12 中国空空导弹研究院 一种激光雷达及其激光脉冲时序调整方法
CN110208814B (zh) * 2019-05-17 2022-07-08 深圳市速腾聚创科技有限公司 激光雷达及其抗干扰方法
CN110687544B (zh) * 2019-10-16 2023-03-24 深圳市镭神智能系统有限公司 一种激光雷达及激光雷达抗干扰方法

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