JPS57125371A - Laser radar - Google Patents

Laser radar

Info

Publication number
JPS57125371A
JPS57125371A JP56010381A JP1038181A JPS57125371A JP S57125371 A JPS57125371 A JP S57125371A JP 56010381 A JP56010381 A JP 56010381A JP 1038181 A JP1038181 A JP 1038181A JP S57125371 A JPS57125371 A JP S57125371A
Authority
JP
Japan
Prior art keywords
visual field
laser
scanning
offset
angle
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.)
Granted
Application number
JP56010381A
Other languages
Japanese (ja)
Other versions
JPS6154187B2 (en
Inventor
Toru Tajime
Toshio Takei
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP56010381A priority Critical patent/JPS57125371A/en
Publication of JPS57125371A publication Critical patent/JPS57125371A/en
Publication of JPS6154187B2 publication Critical patent/JPS6154187B2/ja
Granted 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
    • 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

Landscapes

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

Abstract

PURPOSE:To obtain a high resolution or a wide visual field by a method wherein a scanning type laser radar performing the target detection by scanning the visual field the transmission direction of the laser and the direction of the reception instantaneous visual field are offset and the offset angle thereof is made variable to be of high data rate. CONSTITUTION:The output beam of a laser 1 is shaped into a fan beam to be then transmitted through a beam splitter 2, X-Y scanner 3 and a telescope. Through a reflector 10 mounted on a polarizer 11 the direction of a reception instantaneous visual field is offset by an angle theta0 along the scanning direction 14 against the transmission direction of the laser. At this time the speed of the scanning angle is given by thetar/Rd so that only the reflected light from a target in the range of the distance R1-R2 shown by a formula is obtained as an output of a detector 5. Thereby the maximum detection distance can be selected independently from the number of picture elements N and a frame rate F to form a laser radar of a high data rate and the high resolution or a wide visual field. In the formula rd denotes the dwell time per picture element corresponding to the reception instantaneous visual field while rt denotes the transit time.
JP56010381A 1981-01-27 1981-01-27 Laser radar Granted JPS57125371A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56010381A JPS57125371A (en) 1981-01-27 1981-01-27 Laser radar

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56010381A JPS57125371A (en) 1981-01-27 1981-01-27 Laser radar

Publications (2)

Publication Number Publication Date
JPS57125371A true JPS57125371A (en) 1982-08-04
JPS6154187B2 JPS6154187B2 (en) 1986-11-21

Family

ID=11748543

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56010381A Granted JPS57125371A (en) 1981-01-27 1981-01-27 Laser radar

Country Status (1)

Country Link
JP (1) JPS57125371A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63108884A (en) * 1986-10-27 1988-05-13 Matsushita Electric Works Ltd Picture monitoring system
JPH08304523A (en) * 1995-05-02 1996-11-22 Toshiba Corp Optical searching device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63108884A (en) * 1986-10-27 1988-05-13 Matsushita Electric Works Ltd Picture monitoring system
JPH0771286B2 (en) * 1986-10-27 1995-07-31 松下電工株式会社 Image monitoring method
JPH08304523A (en) * 1995-05-02 1996-11-22 Toshiba Corp Optical searching device

Also Published As

Publication number Publication date
JPS6154187B2 (en) 1986-11-21

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