BE471307A - - Google Patents

Info

Publication number
BE471307A
BE471307A BE471307DA BE471307A BE 471307 A BE471307 A BE 471307A BE 471307D A BE471307D A BE 471307DA BE 471307 A BE471307 A BE 471307A
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 BE471307A publication Critical patent/BE471307A/xx

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S13/00Systems 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
    • G01S13/02Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/06Systems determining position data of a target
    • G01S13/08Systems for measuring distance only
    • G01S13/32Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
    • G01S13/34Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated using transmission of continuous, frequency-modulated waves while heterodyning the received signal, or a signal derived therefrom, with a locally-generated signal related to the contemporaneously transmitted signal
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S13/00Systems 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
    • G01S13/02Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/50Systems of measurement based on relative movement of target
    • G01S13/58Velocity or trajectory determination systems; Sense-of-movement determination systems
    • G01S13/585Velocity or trajectory determination systems; Sense-of-movement determination systems processing the video signal in order to evaluate or display the velocity value

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Rectifiers (AREA)
  • Measurement Of Current Or Voltage (AREA)
BE471307D 1944-11-28 BE471307A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2373244A GB583752A (en) 1944-11-28 1944-11-28 Improvements in or relating to electric frequency counting arrangements

Publications (1)

Publication Number Publication Date
BE471307A true BE471307A (fr)

Family

ID=10200387

Family Applications (1)

Application Number Title Priority Date Filing Date
BE471307D BE471307A (fr) 1944-11-28

Country Status (4)

Country Link
BE (1) BE471307A (fr)
ES (1) ES172515A1 (fr)
FR (1) FR939201A (fr)
GB (1) GB583752A (fr)

Also Published As

Publication number Publication date
FR939201A (fr) 1948-11-08
ES172515A1 (es) 1946-03-16
GB583752A (en) 1946-12-30

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