BE476639A - - Google Patents

Info

Publication number
BE476639A
BE476639A BE476639DA BE476639A BE 476639 A BE476639 A BE 476639A BE 476639D A BE476639D A BE 476639DA BE 476639 A BE476639 A BE 476639A
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 BE476639A publication Critical patent/BE476639A/xx

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
    • G01S13/06—Systems determining position data of a target
    • G01S13/08—Systems for measuring distance only
    • G01S13/32—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
    • G01S13/34—Systems 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
    • 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
    • G01S1/02—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 radio waves

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)
BE476639D 1941-09-26 BE476639A (en:Method)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB12500/41A GB552260A (en) 1941-09-26 1941-09-26 Improvements in or relating to radio altimeters

Publications (1)

Publication Number Publication Date
BE476639A true BE476639A (en:Method)

Family

ID=10005733

Family Applications (1)

Application Number Title Priority Date Filing Date
BE476639D BE476639A (en:Method) 1941-09-26

Country Status (4)

Country Link
US (1) US2395928A (en:Method)
BE (1) BE476639A (en:Method)
FR (1) FR939391A (en:Method)
GB (1) GB552260A (en:Method)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2490808A (en) * 1942-11-28 1949-12-13 Standard Telephones Cables Ltd Radio detection system
US2603744A (en) * 1945-09-14 1952-07-15 Roland W Larson Tuning mechanism
US2724055A (en) * 1945-09-17 1955-11-15 Bliss William Roderic Coupling system for high frequencies
US2448554A (en) * 1946-02-27 1948-09-07 Nicholas T Simopoulos Ultra high frequency tuning unit
US2570295A (en) * 1948-04-27 1951-10-09 Jr Harry Vantine Parachute safety opener
US2712061A (en) * 1948-11-03 1955-06-28 Westinghouse Electric Corp Means for high speed keying at low radio frequency
US2755461A (en) * 1951-06-07 1956-07-17 Steven N Pantages Cymatophone

Also Published As

Publication number Publication date
US2395928A (en) 1946-03-05
GB552260A (en) 1943-03-30
FR939391A (fr) 1948-11-12

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