FR2677456B1 - Systeme laser a detection heterodyne avec reduction des effets de la lumiere parasite. - Google Patents

Systeme laser a detection heterodyne avec reduction des effets de la lumiere parasite.

Info

Publication number
FR2677456B1
FR2677456B1 FR8605015A FR8605015A FR2677456B1 FR 2677456 B1 FR2677456 B1 FR 2677456B1 FR 8605015 A FR8605015 A FR 8605015A FR 8605015 A FR8605015 A FR 8605015A FR 2677456 B1 FR2677456 B1 FR 2677456B1
Authority
FR
France
Prior art keywords
reduction
effects
laser system
interference light
detection laser
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.)
Expired - Fee Related
Application number
FR8605015A
Other languages
English (en)
Other versions
FR2677456A1 (fr
Inventor
Jean-Louis Meyzonnette
Bertrand Remy
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.)
Thales SA
Original Assignee
Thomson CSF SA
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 Thomson CSF SA filed Critical Thomson CSF SA
Priority to FR8605015A priority Critical patent/FR2677456B1/fr
Priority to GB8708269A priority patent/GB2256764B/en
Priority to DE19873711634 priority patent/DE3711634A1/de
Publication of FR2677456A1 publication Critical patent/FR2677456A1/fr
Application granted granted Critical
Publication of FR2677456B1 publication Critical patent/FR2677456B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • 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
    • 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
    • G01S17/10—Systems determining position data of a target for measuring distance only using transmission of interrupted, pulse-modulated waves
    • G01S17/26—Systems determining position data of a target for measuring distance only using transmission of interrupted, pulse-modulated waves wherein the transmitted pulses use a frequency-modulated or phase-modulated carrier wave, e.g. for pulse compression of received signals
    • 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
FR8605015A 1986-04-08 1986-04-08 Systeme laser a detection heterodyne avec reduction des effets de la lumiere parasite. Expired - Fee Related FR2677456B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR8605015A FR2677456B1 (fr) 1986-04-08 1986-04-08 Systeme laser a detection heterodyne avec reduction des effets de la lumiere parasite.
GB8708269A GB2256764B (en) 1986-04-08 1987-04-07 Laser system with heterodyne detection
DE19873711634 DE3711634A1 (de) 1986-04-08 1987-04-08 Lasersystem mit heterodyndetektion und unterdrueckung der stoerlichteffekte

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8605015A FR2677456B1 (fr) 1986-04-08 1986-04-08 Systeme laser a detection heterodyne avec reduction des effets de la lumiere parasite.

Publications (2)

Publication Number Publication Date
FR2677456A1 FR2677456A1 (fr) 1992-12-11
FR2677456B1 true FR2677456B1 (fr) 1993-10-29

Family

ID=9334022

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8605015A Expired - Fee Related FR2677456B1 (fr) 1986-04-08 1986-04-08 Systeme laser a detection heterodyne avec reduction des effets de la lumiere parasite.

Country Status (3)

Country Link
DE (1) DE3711634A1 (fr)
FR (1) FR2677456B1 (fr)
GB (1) GB2256764B (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4402642C2 (de) * 1994-01-29 1995-11-23 Leuze Electronic Gmbh & Co Optoelektronische Vorrichtung zum Orten von Hindernissen
SE504941C2 (sv) * 1995-09-14 1997-06-02 Geotronics Ab Förfarande och anordning för inriktning
JP4107603B2 (ja) * 2003-02-19 2008-06-25 三菱電機株式会社 レーザレーダ装置
FR3117608B1 (fr) * 2020-12-13 2022-12-16 Commissariat Energie Atomique système imageur lidar a detection heterodyne de type a onde continue modulee en fréquence (FMCW) comportant un dispositif de correction de phase du signal de réference

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2394814A1 (fr) * 1977-06-16 1979-01-12 Telecommunications Sa Dispositif pour supprimer les echos parasites tres proches dans les radars optiques a compression d'impulsions
US4397549A (en) * 1981-03-27 1983-08-09 The United States Of America As Represented By The Secretary Of The Army Method for removal of LIDAR background backscattering by subtraction of multiple-delayed return signal

Also Published As

Publication number Publication date
GB2256764A (en) 1992-12-16
GB8708269D0 (en) 1992-09-16
GB2256764B (en) 1993-05-12
DE3711634A1 (de) 1993-01-14
FR2677456A1 (fr) 1992-12-11

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Legal Events

Date Code Title Description
ST Notification of lapse