FR3073950B1 - DEVICE AND METHOD FOR CALIBRATING A LIDAR - Google Patents

DEVICE AND METHOD FOR CALIBRATING A LIDAR Download PDF

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Publication number
FR3073950B1
FR3073950B1 FR1760842A FR1760842A FR3073950B1 FR 3073950 B1 FR3073950 B1 FR 3073950B1 FR 1760842 A FR1760842 A FR 1760842A FR 1760842 A FR1760842 A FR 1760842A FR 3073950 B1 FR3073950 B1 FR 3073950B1
Authority
FR
France
Prior art keywords
optical fiber
lidar
calibrating
fractions
emitted
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
FR1760842A
Other languages
French (fr)
Other versions
FR3073950A1 (en
Inventor
Jean-Pierre Cariou
Vincent Pureur
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Leosphere
Original Assignee
Leosphere
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Leosphere filed Critical Leosphere
Priority to FR1760842A priority Critical patent/FR3073950B1/en
Priority to EP18812070.3A priority patent/EP3710861A1/en
Priority to PCT/EP2018/081318 priority patent/WO2019096878A1/en
Publication of FR3073950A1 publication Critical patent/FR3073950A1/en
Application granted granted Critical
Publication of FR3073950B1 publication Critical patent/FR3073950B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • G01S17/95—Lidar systems specially adapted for specific applications for meteorological use
    • 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
    • G01S17/46—Indirect determination of position data
    • G01S17/48—Active triangulation systems, i.e. using the transmission and reflection of electromagnetic waves other than radio waves
    • 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
    • G01S7/481—Constructional features, e.g. arrangements of optical elements
    • G01S7/4818—Constructional features, e.g. arrangements of optical elements using optical fibres
    • 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
    • G01S7/497—Means for monitoring or calibrating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
    • Y02A90/10—Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation

Landscapes

  • 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

L'invention se rapporte à un dispositif d'étalonnage (1) d'un lidar (2) atmosphérique comprenant une fibre optique (3) agencée pour propager au moins une partie d'un faisceau (5) émis par le lidar, un élément réflecteur (6) situé à une extrémité de la fibre optique et agencé pour réfléchir dans la fibre optique une portion (7) de l'au moins une partie du faisceau se propageant dans la fibre optique ; le dispositif d'étalonnage étant caractérisé en ce que la fibre optique comprend des diffuseurs répartis le long de la fibre optique et rétrodiffusant des fractions de l'au moins une partie du faisceau se propageant dans la fibre optique, et un dispositif de couplage (9) agencé pour coupler • dans la fibre optique au moins une partie (4) du faisceau émis par le lidar, et • dans le lidar au moins une partie (71,81,181) desdites fractions rétrodiffusées par les diffuseurs, et au moins une partie d'un faisceau réfléchi par l'élément réflecteur.The invention relates to a device (1) for calibrating an atmospheric lidar (2) comprising an optical fiber (3) arranged to propagate at least part of a beam (5) emitted by the lidar, an element reflector (6) located at one end of the optical fiber and arranged to reflect in the optical fiber a portion (7) of the at least part of the beam propagating in the optical fiber; the calibration device being characterized in that the optical fiber comprises diffusers distributed along the optical fiber and backscattering fractions of the at least part of the beam propagating in the optical fiber, and a coupling device (9 ) arranged to couple • in the optical fiber at least part (4) of the beam emitted by the lidar, and • in the lidar at least a part (71,81,181) of said fractions backscattered by the diffusers, and at least part of 'a beam reflected by the reflector element.

FR1760842A 2017-11-17 2017-11-17 DEVICE AND METHOD FOR CALIBRATING A LIDAR Active FR3073950B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR1760842A FR3073950B1 (en) 2017-11-17 2017-11-17 DEVICE AND METHOD FOR CALIBRATING A LIDAR
EP18812070.3A EP3710861A1 (en) 2017-11-17 2018-11-15 Device and method for calibrating a lidar
PCT/EP2018/081318 WO2019096878A1 (en) 2017-11-17 2018-11-15 Device and method for calibrating a lidar

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1760842A FR3073950B1 (en) 2017-11-17 2017-11-17 DEVICE AND METHOD FOR CALIBRATING A LIDAR
FR1760842 2017-11-17

Publications (2)

Publication Number Publication Date
FR3073950A1 FR3073950A1 (en) 2019-05-24
FR3073950B1 true FR3073950B1 (en) 2021-06-18

Family

ID=62017339

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1760842A Active FR3073950B1 (en) 2017-11-17 2017-11-17 DEVICE AND METHOD FOR CALIBRATING A LIDAR

Country Status (3)

Country Link
EP (1) EP3710861A1 (en)
FR (1) FR3073950B1 (en)
WO (1) WO2019096878A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022006158A1 (en) * 2020-06-29 2022-01-06 Brain Corporation Systems, apparatuses, and methods for calibrating lidar sensors of a robot using intersecting lidar sensors
CN113433569B (en) * 2021-06-24 2024-03-01 深圳大舜激光技术有限公司 Atmospheric parameter measurement method
CN115877361B (en) * 2023-01-29 2023-05-12 深圳煜炜光学科技有限公司 Laser radar capable of rapidly detecting surface dirt and implementation method thereof
CN116643257B (en) * 2023-07-17 2023-11-07 苏州拓坤光电科技有限公司 Performance test method and system for laser radar

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4189233A (en) * 1977-03-07 1980-02-19 Westinghouse Electric Corp. Passive optical range simulator device
US4552454A (en) * 1983-02-08 1985-11-12 Hughes Aircraft Company System and method for detecting a plurality of targets
US5825464A (en) * 1997-01-03 1998-10-20 Lockheed Corp Calibration system and method for lidar systems

Also Published As

Publication number Publication date
EP3710861A1 (en) 2020-09-23
WO2019096878A1 (en) 2019-05-23
FR3073950A1 (en) 2019-05-24

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