DE3587492D1 - Frequenzmoduliertes laser-radar. - Google Patents

Frequenzmoduliertes laser-radar.

Info

Publication number
DE3587492D1
DE3587492D1 DE8585301845T DE3587492T DE3587492D1 DE 3587492 D1 DE3587492 D1 DE 3587492D1 DE 8585301845 T DE8585301845 T DE 8585301845T DE 3587492 T DE3587492 T DE 3587492T DE 3587492 D1 DE3587492 D1 DE 3587492D1
Authority
DE
Germany
Prior art keywords
ranging
interferometer
target
path
phase difference
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
DE8585301845T
Other languages
English (en)
Other versions
DE3587492T2 (de
Inventor
Francis Eugene Goodwin
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.)
Digital Signal Corp
Original Assignee
Digital Signal Corp
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 Digital Signal Corp filed Critical Digital Signal Corp
Application granted granted Critical
Publication of DE3587492D1 publication Critical patent/DE3587492D1/de
Publication of DE3587492T2 publication Critical patent/DE3587492T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/30—Measuring arrangements characterised by the use of optical techniques for measuring roughness or irregularity of surfaces
    • G01B11/303—Measuring arrangements characterised by the use of optical techniques for measuring roughness or irregularity of surfaces using photoelectric detection means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
    • G01B11/2441—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures using interferometry
    • 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
    • G01S17/34—Systems determining position data of a target for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated using transmission of continuous, frequency-modulated waves while heterodyning the received signal, or a signal derived therefrom, with a locally-generated signal related to 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
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B2290/00—Aspects of interferometers not specifically covered by any group under G01B9/02
    • G01B2290/60—Reference interferometer, i.e. additional interferometer not interacting with object
DE85301845T 1984-03-16 1985-03-15 Frequenzmoduliertes Laser-Radar. Expired - Fee Related DE3587492T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/590,350 US4830486A (en) 1984-03-16 1984-03-16 Frequency modulated lasar radar

Publications (2)

Publication Number Publication Date
DE3587492D1 true DE3587492D1 (de) 1993-09-09
DE3587492T2 DE3587492T2 (de) 1994-03-17

Family

ID=24361895

Family Applications (1)

Application Number Title Priority Date Filing Date
DE85301845T Expired - Fee Related DE3587492T2 (de) 1984-03-16 1985-03-15 Frequenzmoduliertes Laser-Radar.

Country Status (5)

Country Link
US (1) US4830486A (de)
EP (1) EP0164181B1 (de)
JP (1) JP2566907B2 (de)
AT (1) ATE92640T1 (de)
DE (1) DE3587492T2 (de)

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Also Published As

Publication number Publication date
EP0164181B1 (de) 1993-08-04
JP2566907B2 (ja) 1996-12-25
DE3587492T2 (de) 1994-03-17
JPS60233581A (ja) 1985-11-20
US4830486A (en) 1989-05-16
EP0164181A3 (en) 1988-10-26
ATE92640T1 (de) 1993-08-15
EP0164181A2 (de) 1985-12-11

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