JPS55128173A - Doppler radar for vehicle - Google Patents

Doppler radar for vehicle

Info

Publication number
JPS55128173A
JPS55128173A JP3553279A JP3553279A JPS55128173A JP S55128173 A JPS55128173 A JP S55128173A JP 3553279 A JP3553279 A JP 3553279A JP 3553279 A JP3553279 A JP 3553279A JP S55128173 A JPS55128173 A JP S55128173A
Authority
JP
Japan
Prior art keywords
output
filter
doppler radar
vehicle
speed
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
JP3553279A
Other languages
Japanese (ja)
Inventor
Yukitsugu Fukumori
Akira Endo
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.)
Hitachi Ltd
Nissan Motor Co Ltd
Original Assignee
Hitachi Ltd
Nissan 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 Hitachi Ltd, Nissan Motor Co Ltd filed Critical Hitachi Ltd
Priority to JP3553279A priority Critical patent/JPS55128173A/en
Publication of JPS55128173A publication Critical patent/JPS55128173A/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
    • G01S13/58—Velocity or trajectory determination systems; Sense-of-movement determination systems
    • G01S13/60—Velocity or trajectory determination systems; Sense-of-movement determination systems wherein the transmitter and receiver are mounted on the moving object, e.g. for determining ground speed, drift angle, ground track

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 accomplish highly accurate speed detection with a higher value of S/N through narrow band amplification of Doppler output signal. CONSTITUTION:The output signal of the Doppler radar 2 is fed to a variable filter 6 via an amplifier 3 having a frequency band covering the detection speed range. The filter output is outputted as the speed signal through a frequency voltage converter 4. The output is introduced to a voltage comparator 7, the output of which controls the band range of the filter 6 as shown by f0-f4.
JP3553279A 1979-03-28 1979-03-28 Doppler radar for vehicle Pending JPS55128173A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3553279A JPS55128173A (en) 1979-03-28 1979-03-28 Doppler radar for vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3553279A JPS55128173A (en) 1979-03-28 1979-03-28 Doppler radar for vehicle

Publications (1)

Publication Number Publication Date
JPS55128173A true JPS55128173A (en) 1980-10-03

Family

ID=12444336

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3553279A Pending JPS55128173A (en) 1979-03-28 1979-03-28 Doppler radar for vehicle

Country Status (1)

Country Link
JP (1) JPS55128173A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6114585A (en) * 1984-06-30 1986-01-22 Toshiba Corp Noncontact speed indicator for vehicle
JPS6147577A (en) * 1984-08-11 1986-03-08 Iseki & Co Ltd Ground speed detector
JPH01212382A (en) * 1988-02-19 1989-08-25 Iseki & Co Ltd Doppler sensor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6114585A (en) * 1984-06-30 1986-01-22 Toshiba Corp Noncontact speed indicator for vehicle
JPS6147577A (en) * 1984-08-11 1986-03-08 Iseki & Co Ltd Ground speed detector
JPH01212382A (en) * 1988-02-19 1989-08-25 Iseki & Co Ltd Doppler sensor

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