JPS5618773A - Radar apparatus for automobile - Google Patents

Radar apparatus for automobile

Info

Publication number
JPS5618773A
JPS5618773A JP9410579A JP9410579A JPS5618773A JP S5618773 A JPS5618773 A JP S5618773A JP 9410579 A JP9410579 A JP 9410579A JP 9410579 A JP9410579 A JP 9410579A JP S5618773 A JPS5618773 A JP S5618773A
Authority
JP
Japan
Prior art keywords
automobile
cars
relative speed
speed
radar
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
JP9410579A
Other languages
Japanese (ja)
Inventor
Takaya Senzaki
Eiji Murao
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.)
Honda Motor Co Ltd
Original Assignee
Honda Motor 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 Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Priority to JP9410579A priority Critical patent/JPS5618773A/en
Publication of JPS5618773A publication Critical patent/JPS5618773A/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
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/50—Systems of measurement based on relative movement of target
    • G01S13/52—Discriminating between fixed and moving objects or between objects moving at different speeds
    • G01S13/56—Discriminating between fixed and moving objects or between objects moving at different speeds for presence detection

Landscapes

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

Abstract

PURPOSE:To obtain information on approach to other cars excluding static subjects by cancelling the radar output when the sum of the speed of automobiles and the relative speed thereof becomes zero in the Doppler radar with direction identifying function for measuring the relative speed. CONSTITUTION:An antenna as not illustrated using CW Doppler radar is arranged at the rear of the automobile A to emit radio wave backward. In a detector of such type for detecting cars approaching from the back, the radar output is cancelled when the addition of the relative speed measured and the speed of automobiles becomes zero by means of the signal processing circuit as not illustrated. This enables detection of approaching cars B and C excluding guardrails, walls and the like while the automobile A is running on the lane along the side of the road thereby allowing operators to obtain accurate information.
JP9410579A 1979-07-24 1979-07-24 Radar apparatus for automobile Pending JPS5618773A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9410579A JPS5618773A (en) 1979-07-24 1979-07-24 Radar apparatus for automobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9410579A JPS5618773A (en) 1979-07-24 1979-07-24 Radar apparatus for automobile

Publications (1)

Publication Number Publication Date
JPS5618773A true JPS5618773A (en) 1981-02-21

Family

ID=14101153

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9410579A Pending JPS5618773A (en) 1979-07-24 1979-07-24 Radar apparatus for automobile

Country Status (1)

Country Link
JP (1) JPS5618773A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6024479A (en) * 1983-07-20 1985-02-07 Fujitsu Ten Ltd Rear warning apparatus for vehicle

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51147195A (en) * 1975-06-11 1976-12-17 Matsushita Electric Ind Co Ltd Doppler radar
JPS52111395A (en) * 1976-03-16 1977-09-19 Fujitsu Ten Ltd Fmmcw radar

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51147195A (en) * 1975-06-11 1976-12-17 Matsushita Electric Ind Co Ltd Doppler radar
JPS52111395A (en) * 1976-03-16 1977-09-19 Fujitsu Ten Ltd Fmmcw radar

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6024479A (en) * 1983-07-20 1985-02-07 Fujitsu Ten Ltd Rear warning apparatus for vehicle

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