JPS5551380A - Direction indicating device - Google Patents

Direction indicating device

Info

Publication number
JPS5551380A
JPS5551380A JP12554778A JP12554778A JPS5551380A JP S5551380 A JPS5551380 A JP S5551380A JP 12554778 A JP12554778 A JP 12554778A JP 12554778 A JP12554778 A JP 12554778A JP S5551380 A JPS5551380 A JP S5551380A
Authority
JP
Japan
Prior art keywords
pulse
background
automatic tracking
target
reflection light
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.)
Pending
Application number
JP12554778A
Other languages
Japanese (ja)
Inventor
Hiroshi Nomura
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP12554778A priority Critical patent/JPS5551380A/en
Publication of JPS5551380A publication Critical patent/JPS5551380A/en
Pending 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
    • G01S17/66—Tracking systems using electromagnetic waves other than radio waves

Landscapes

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

Abstract

PURPOSE:To ensure an assured automatic tracking and direction indication with elimination of the effect due to the background by receiving only the laser reflection light sent from the mobile object via the range gate. CONSTITUTION:The laser pulse is irradiated to the target object from laser beam irradiation part 1, and thus the reflection light enters split photoelectric converter 23. Based on the reflection pulse, the distance signal to the target can be obtained via counter 502. Using the output of the distance signal plus the start pulse, gate pulse generator 507 generates the gate pulse to turn on gates 503 and 504 by estimating the time band within which the reflecion light arrives. Thus the reflection light sent from the background is eliminated. Then part 1 is aimed to the edge of the target, and servo motor 31 is driven so that the output of each reception surface of converter 23 may always be zero. Thus an automatic tracking is possible. In this way, the effect of the background can be eliminated, ensuring an accurate automatic tracking and direction indication.
JP12554778A 1978-10-11 1978-10-11 Direction indicating device Pending JPS5551380A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12554778A JPS5551380A (en) 1978-10-11 1978-10-11 Direction indicating device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12554778A JPS5551380A (en) 1978-10-11 1978-10-11 Direction indicating device

Publications (1)

Publication Number Publication Date
JPS5551380A true JPS5551380A (en) 1980-04-15

Family

ID=14912892

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12554778A Pending JPS5551380A (en) 1978-10-11 1978-10-11 Direction indicating device

Country Status (1)

Country Link
JP (1) JPS5551380A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0712935A (en) * 1993-06-28 1995-01-17 Rhythm Watch Co Ltd Range finder

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49122689A (en) * 1973-03-08 1974-11-22
JPS5010161A (en) * 1973-05-24 1975-02-01
JPS5094893A (en) * 1973-12-22 1975-07-28
JPS5389393A (en) * 1977-01-18 1978-08-05 Tech Res & Dev Inst Of Japan Def Agency Wait tracking system of missiles, etcetera

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49122689A (en) * 1973-03-08 1974-11-22
JPS5010161A (en) * 1973-05-24 1975-02-01
JPS5094893A (en) * 1973-12-22 1975-07-28
JPS5389393A (en) * 1977-01-18 1978-08-05 Tech Res & Dev Inst Of Japan Def Agency Wait tracking system of missiles, etcetera

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0712935A (en) * 1993-06-28 1995-01-17 Rhythm Watch Co Ltd Range finder

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