SE7908085L - MAKE SURE TO ESTIMATE THE SPEED OF A FORM THAT IS IN MOVEMENT - Google Patents

MAKE SURE TO ESTIMATE THE SPEED OF A FORM THAT IS IN MOVEMENT

Info

Publication number
SE7908085L
SE7908085L SE7908085A SE7908085A SE7908085L SE 7908085 L SE7908085 L SE 7908085L SE 7908085 A SE7908085 A SE 7908085A SE 7908085 A SE7908085 A SE 7908085A SE 7908085 L SE7908085 L SE 7908085L
Authority
SE
Sweden
Prior art keywords
speed
autocorrelation
signal
doppler signal
estimate
Prior art date
Application number
SE7908085A
Other languages
Unknown language ( )
Swedish (sv)
Inventor
M Gautschi
Original Assignee
Patelhold Patentverwertung
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 Patelhold Patentverwertung filed Critical Patelhold Patentverwertung
Publication of SE7908085L publication Critical patent/SE7908085L/en

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
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/91—Radar or analogous systems specially adapted for specific applications for traffic control
    • G01S13/92—Radar or analogous systems specially adapted for specific applications for traffic control for velocity measurement
    • 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)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

The speed of moving objects is measured using the Doppler Radar principle. A mixer M receives the reflected radiation from the beams St1, St2 delivered by the antenna (A) and generates a Doppler signal (ds) having a velocity dependent frequency. An evaluation circuit DA produces from the Doppler signal (ds), a signal (vgr) which is applied to an autocorrelation circuit K to determine the timing of the autocorrelation window. The maximum time tau max of the autocorrelation function of the Doppler signal ds when divided into the separation (distance L) of the microwave beams (St1, St2) yields a more accurate velocity measurement. <IMAGE>
SE7908085A 1978-10-03 1979-09-28 MAKE SURE TO ESTIMATE THE SPEED OF A FORM THAT IS IN MOVEMENT SE7908085L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1024378A CH633637A5 (en) 1978-10-03 1978-10-03 METHOD OF MEASURING THE SPEED OF A MOVING OBJECT.

Publications (1)

Publication Number Publication Date
SE7908085L true SE7908085L (en) 1980-04-04

Family

ID=4361030

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7908085A SE7908085L (en) 1978-10-03 1979-09-28 MAKE SURE TO ESTIMATE THE SPEED OF A FORM THAT IS IN MOVEMENT

Country Status (8)

Country Link
AT (1) AT377099B (en)
CH (1) CH633637A5 (en)
DE (1) DE2845127A1 (en)
FR (1) FR2438273B1 (en)
GB (1) GB2035006B (en)
IT (1) IT1123390B (en)
NL (1) NL7907308A (en)
SE (1) SE7908085L (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3810357A1 (en) * 1988-03-26 1989-10-05 Licentia Gmbh METHOD FOR LOCAL TRAFFIC DATA ACQUISITION AND EVALUATION AND DEVICE FOR CARRYING OUT THE METHOD
US6266627B1 (en) 1996-04-01 2001-07-24 Tom Gatsonides Method and apparatus for determining the speed and location of a vehicle
CN101943753B (en) * 2010-07-29 2012-06-13 西安空间无线电技术研究所 Method for measuring microwave radar beam central transverse velocity

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2237139C2 (en) * 1972-07-28 1982-04-29 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Doppler radar for vehicle speed measurement - has underbody hollow conductor antenna with longitudinal slot aperture
US3838424A (en) * 1973-02-20 1974-09-24 Singer Co Microwave interference pattern sensor
DE2714365C2 (en) * 1977-03-31 1984-07-05 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Doppler radar device with determination of the direction of movement

Also Published As

Publication number Publication date
FR2438273A1 (en) 1980-04-30
NL7907308A (en) 1980-04-09
CH633637A5 (en) 1982-12-15
GB2035006B (en) 1982-12-08
GB2035006A (en) 1980-06-11
AT377099B (en) 1985-02-11
FR2438273B1 (en) 1985-08-23
IT7926150A0 (en) 1979-10-01
DE2845127A1 (en) 1980-04-17
ATA573179A (en) 1984-06-15
IT1123390B (en) 1986-04-30

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