FR1121818A - Perfectionnements aux altimètres pour très faibles altitudes - Google Patents

Perfectionnements aux altimètres pour très faibles altitudes

Info

Publication number
FR1121818A
FR1121818A FR1121818DA FR1121818A FR 1121818 A FR1121818 A FR 1121818A FR 1121818D A FR1121818D A FR 1121818DA FR 1121818 A FR1121818 A FR 1121818A
Authority
FR
France
Prior art keywords
altimeters
low altitudes
altitudes
low
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.)
Expired
Application number
Other languages
English (en)
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.)
Collins Radio Co
Original Assignee
Collins Radio Co
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 Collins Radio Co filed Critical Collins Radio Co
Application granted granted Critical
Publication of FR1121818A publication Critical patent/FR1121818A/fr
Expired 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
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/91—Radar or analogous systems specially adapted for specific applications for traffic control
    • G01S13/913—Radar or analogous systems specially adapted for specific applications for traffic control for landing purposes
    • 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
    • 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
    • G01S13/36—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated with phase comparison between the received signal and the contemporaneously transmitted signal

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)
FR1121818D 1955-04-18 1955-04-05 Perfectionnements aux altimètres pour très faibles altitudes Expired FR1121818A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB11135/55A GB772639A (en) 1955-04-18 1955-04-18 Ultra short range altimeter system

Publications (1)

Publication Number Publication Date
FR1121818A true FR1121818A (fr) 1956-08-27

Family

ID=9980689

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1121818D Expired FR1121818A (fr) 1955-04-18 1955-04-05 Perfectionnements aux altimètres pour très faibles altitudes

Country Status (4)

Country Link
US (1) US2710959A (fr)
DE (1) DE1036332B (fr)
FR (1) FR1121818A (fr)
GB (1) GB772639A (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2754492A (en) * 1953-04-13 1956-07-10 Henry W Parker Method and apparatus for precision echo ranging
US2871460A (en) * 1955-05-12 1959-01-27 John N Beebe Velocity measuring apparatus
US3872792A (en) * 1956-01-11 1975-03-25 Us Army Fuze
US2913700A (en) * 1956-05-31 1959-11-17 Stanley S Brody Supersonic deviation-measuring apparatus
US2979715A (en) * 1957-05-31 1961-04-11 Martin Co Radar method and apparatus for height and sea surface contour measurement
US3401388A (en) * 1966-12-27 1968-09-10 Ryan Aeronautical Co Closure-rate determining radar system
US5148178A (en) * 1988-10-11 1992-09-15 Santa Barbara Research Center Precision ranging system
US20100017050A1 (en) * 2008-07-18 2010-01-21 Watts Randy Apparatus and method for determining and indicating distance between flaring airplane & landing surface

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR959092A (fr) * 1938-09-30 1950-03-23
CH219436A (de) * 1939-03-31 1942-02-15 Guanella Gustav Ing Dipl Verfahren und Einrichtung zur Kontrolle der Entfernung mit frequenzmodulierten Schwingungen.
US2403527A (en) * 1943-01-30 1946-07-09 Rca Corp Pulse-echo distance indicator
US2467412A (en) * 1944-06-09 1949-04-19 Sperry Corp Navigation instrument
GB615667A (en) * 1946-04-12 1949-01-10 John Ernest Clegg Improvements in and relating to radio apparatus for the measurement of distance
US2665420A (en) * 1949-04-19 1954-01-05 Sun Oil Co Radiant energy system for distance measuring

Also Published As

Publication number Publication date
US2710959A (en) 1955-06-14
DE1036332B (de) 1958-08-14
GB772639A (en) 1957-04-17

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