BE478697A - - Google Patents

Info

Publication number
BE478697A
BE478697A BE478697DA BE478697A BE 478697 A BE478697 A BE 478697A BE 478697D A BE478697D A BE 478697DA BE 478697 A BE478697 A BE 478697A
Authority
BE
Belgium
Application number
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.)
Publication of BE478697A publication Critical patent/BE478697A/xx
Priority claimed from GB74548A external-priority patent/GB650965A/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
    • G01S13/02—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
    • G01S13/585—Velocity or trajectory determination systems; Sense-of-movement determination systems processing the video signal in order to evaluate or display the velocity value
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/64—Devices characterised by the determination of the time taken to traverse a fixed distance
    • G01P3/66—Devices characterised by the determination of the time taken to traverse a fixed distance using electric or magnetic means
    • G01P3/665—Devices characterised by the determination of the time taken to traverse a fixed distance using electric or magnetic means for projectile velocity measurements
    • 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
    • G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
    • G01S1/72—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using ultrasonic, sonic or infrasonic waves
    • 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
    • G01S13/583—Velocity or trajectory determination systems; Sense-of-movement determination systems using transmission of continuous unmodulated waves, amplitude-, frequency-, or phase-modulated waves and based upon the Doppler effect resulting from movement of targets

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Multimedia (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
BE478697D 1944-06-08 BE478697A (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2524610X 1944-06-08
GB74548A GB650965A (en) 1948-01-09 1948-01-09 Improvements in apparatus for the measurement of velocities

Publications (1)

Publication Number Publication Date
BE478697A true BE478697A (de)

Family

ID=32231621

Family Applications (1)

Application Number Title Priority Date Filing Date
BE478697D BE478697A (de) 1944-06-08

Country Status (5)

Country Link
US (1) US2524610A (de)
BE (1) BE478697A (de)
DE (1) DE809824C (de)
FR (1) FR957724A (de)
NL (1) NL75425C (de)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2666132A (en) * 1941-01-28 1954-01-12 Wilmer L Barrow Ultrahigh-frequency bridge circuit and apparatus
US2669710A (en) * 1945-10-26 1954-02-16 Sherr Rubby Aircraft velocity indicating pulse echo system
US2629865A (en) * 1946-06-13 1953-02-24 Eastern Ind Inc Radio echo apparatus for detecting and measuring the speed of moving objects
US2752593A (en) * 1951-10-11 1956-06-26 Sperry Rand Corp Initiating and timing circuit for a doppler type chronograph
US2834955A (en) * 1951-12-17 1958-05-13 Decca Record Co Ltd Radar systems
DE1018229B (de) * 1956-03-24 1957-10-24 Licentia Gmbh Verfahren zur Ermittlung der Laenge oder der auf die Zeiteinheit bezogenen Laengenaenderung ausgefahrener Seile
US2949603A (en) * 1957-02-18 1960-08-16 Gen Dynamies Corp Relative distance and movement indicator
US3260843A (en) * 1957-08-07 1966-07-12 Westinghouse Air Brake Co Control circuits
DE1156890B (de) * 1958-03-01 1963-11-07 Telefunken Patent Verfahren zur Frequenzmessung
FR1217655A (fr) * 1958-07-03 1960-05-05 Le Ministre Des Armees Terre Appareil de mesure de vitesses par effet doppler-fizeau avec sortie sur chronographeenregistreur
US3161876A (en) * 1959-12-07 1964-12-15 Lab For Electronics Inc Pulse doppler radar system
US3122739A (en) * 1962-03-23 1964-02-25 Spasors Inc Movement detector
US3199074A (en) * 1962-06-08 1965-08-03 Gen Precision Inc Automobile traffic flow analyzer
FR1375768A (fr) * 1963-07-05 1964-10-23 Thomson Houston Comp Francaise Perfectionnements aux procédés et dispositifs de pilotage et d'exploitation des radars doppler
US3438031A (en) * 1967-11-13 1969-04-08 Duncan Parking Meter Corp Doppler radar having digital speed indicator
FR2101028B1 (de) * 1970-08-10 1976-10-29 France Etat
NL173559C (nl) * 1970-08-14 1984-02-01 Commw Of Australia Inrichting voor het direct afleesbaar weergeven van de mondingssnelheid.
JPS50104891A (de) * 1974-01-18 1975-08-19
FR2279113A1 (fr) * 1974-07-17 1976-02-13 Sfim Cinemometre a effet doppler
US4183245A (en) * 1978-10-23 1980-01-15 Leeds & Northrup Company Synchronous frequency-to-voltage converter for doppler apparatus
US4837718A (en) * 1987-02-05 1989-06-06 Lear Siegler, Inc. Doppler radar method and apparatus for measuring a projectile's muzzle velocity

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2423023A (en) * 1938-09-30 1947-06-24 Rca Corp Obstacle detection by radio waves
US2206896A (en) * 1938-11-16 1940-07-09 Bell Telephone Labor Inc Radiant energy distance measuring system
US2403625A (en) * 1940-08-16 1946-07-09 Rca Corp Drift indicator
US2407000A (en) * 1941-10-31 1946-09-03 Rca Corp Radio device for indicating doppler effect
US2324077A (en) * 1941-12-27 1943-07-13 Rca Corp Measuring circuit
US2412003A (en) * 1942-06-16 1946-12-03 Neufeld Jacob Navigational method and apparatus
US2405597A (en) * 1942-11-05 1946-08-13 Bell Telephone Labor Inc Frequency measuring system
BE477480A (de) * 1944-03-20

Also Published As

Publication number Publication date
NL75425C (de)
FR957724A (de) 1950-02-24
US2524610A (en) 1950-10-03
DE809824C (de) 1951-08-02

Similar Documents

Publication Publication Date Title
FR957724A (de)
BE455763A (de)
FR957657A (de)
SE121139C1 (de)
BE454925A (de)
BE457827A (de)
BE457746A (de)
BE457712A (de)
BE457689A (de)
BE447901A (de)
BE457405A (de)
BE457404A (de)
BE457290A (de)
BE457018A (de)
BE456879A (de)
BE456532A (de)
BE456520A (de)
BE456140A (de)
BE457749A (de)
BE455554A (de)
BE454340A (de)
BE455463A (de)
BE455204A (de)
BE455122A (de)
BE452613A (de)