GB678389A - Improvements in or relating to radio altimeters - Google Patents

Improvements in or relating to radio altimeters

Info

Publication number
GB678389A
GB678389A GB33329/49A GB3332949A GB678389A GB 678389 A GB678389 A GB 678389A GB 33329/49 A GB33329/49 A GB 33329/49A GB 3332949 A GB3332949 A GB 3332949A GB 678389 A GB678389 A GB 678389A
Authority
GB
United Kingdom
Prior art keywords
aerial
frequency
signals
coupled
transmitter
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
GB33329/49A
Other languages
English (en)
Inventor
Marino Pompeo Giovanni Capelli
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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
Priority to NL7708770.A priority Critical patent/NL167492B/xx
Priority to BE510950D priority patent/BE510950A/xx
Application filed by Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB33329/49A priority patent/GB678389A/en
Priority to US203250A priority patent/US2686302A/en
Priority to FR1066086D priority patent/FR1066086A/fr
Priority to DEI5714A priority patent/DE951581C/de
Priority to CH303316D priority patent/CH303316A/fr
Publication of GB678389A publication Critical patent/GB678389A/en
Priority to US710206A priority patent/US3045233A/en
Priority to FR784621A priority patent/FR75060E/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
    • G01S13/02—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)
GB33329/49A 1949-12-30 1949-12-30 Improvements in or relating to radio altimeters Expired GB678389A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
NL7708770.A NL167492B (nl) 1949-12-30 Werkwijze voor het stellen van de wandbekisting voor een gebouw met meer dan een verdieping en zich telkens in een lijn boven en onder een doorlopende vloer uit- strekkende wanden, alsmede stelblok bestemd om bij de- ze werkwijze te worden gebruikt.
BE510950D BE510950A (en:Method) 1949-12-30
GB33329/49A GB678389A (en) 1949-12-30 1949-12-30 Improvements in or relating to radio altimeters
US203250A US2686302A (en) 1949-12-30 1950-12-29 Radio altimeter
FR1066086D FR1066086A (fr) 1949-12-30 1952-04-01 Altimètres radioélectriques
DEI5714A DE951581C (de) 1949-12-30 1952-04-09 Reflexions-Hoehenmesser nach dem Prinzip der Schwebungsfrequenzmessung
CH303316D CH303316A (fr) 1949-12-30 1952-04-18 Altimètre radioélectrique.
US710206A US3045233A (en) 1949-12-30 1958-01-21 Frequency modulation radio altimeter
FR784621A FR75060E (fr) 1949-12-30 1959-01-21 Altimètres radio-électriques

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB33329/49A GB678389A (en) 1949-12-30 1949-12-30 Improvements in or relating to radio altimeters

Publications (1)

Publication Number Publication Date
GB678389A true GB678389A (en) 1952-09-03

Family

ID=10351531

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33329/49A Expired GB678389A (en) 1949-12-30 1949-12-30 Improvements in or relating to radio altimeters

Country Status (6)

Country Link
US (1) US2686302A (en:Method)
BE (1) BE510950A (en:Method)
CH (1) CH303316A (en:Method)
FR (1) FR1066086A (en:Method)
GB (1) GB678389A (en:Method)
NL (1) NL167492B (en:Method)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1099013B (de) * 1953-09-25 1961-02-09 Raytheon Mfg Co Radargeraet fuer Fahrzeuge

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3065465A (en) * 1958-04-25 1962-11-20 Raytheon Co Distance measuring devices
FR2477283A1 (fr) 1980-03-03 1981-09-04 Trt Telecom Radio Electr Dispositif de radar destine notamment a mesurer par rapport a lui la vitesse v d'un objet
FR2606159B1 (fr) * 1986-10-31 1989-03-24 Trt Telecom Radio Electr Dispositif radar pour mesurer la distance qui le separe d'un objet
US9116239B1 (en) * 2013-01-14 2015-08-25 Rockwell Collins, Inc. Low range altimeter antenna
CN113965277B (zh) * 2021-11-05 2024-05-10 江西洪都航空工业集团有限责任公司 在密闭环境下对无线电测高表的测试方法、装置及系统

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2247662A (en) * 1938-11-16 1941-07-01 Bell Telephone Labor Inc Radiant energy distance measuring system
US2423644A (en) * 1939-05-19 1947-07-08 Rca Corp Range finder
US2222587A (en) * 1939-06-16 1940-11-19 Rca Corp Radio altimeter
US2261272A (en) * 1940-08-07 1941-11-04 Bell Telephone Labor Inc Radiant energy distance measuring system
US2422133A (en) * 1942-12-30 1947-06-10 Rca Corp Frequency modulated altimeter or distance indicator
US2557864A (en) * 1945-12-05 1951-06-19 Raytheon Mfg Co Object-locating radio system
US2510710A (en) * 1947-02-07 1950-06-06 Rca Corp Balanced detector system for radar apparatus
US2568090A (en) * 1948-06-22 1951-09-18 Raytheon Mfg Co Balanced mixer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1099013B (de) * 1953-09-25 1961-02-09 Raytheon Mfg Co Radargeraet fuer Fahrzeuge

Also Published As

Publication number Publication date
FR1066086A (fr) 1954-06-02
US2686302A (en) 1954-08-10
BE510950A (en:Method)
NL167492B (nl)
CH303316A (fr) 1954-11-30

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