GB581169A - Improvements relating to measurement of distances of obstacles by radio electric waves - Google Patents

Improvements relating to measurement of distances of obstacles by radio electric waves

Info

Publication number
GB581169A
GB581169A GB1669841A GB1669841A GB581169A GB 581169 A GB581169 A GB 581169A GB 1669841 A GB1669841 A GB 1669841A GB 1669841 A GB1669841 A GB 1669841A GB 581169 A GB581169 A GB 581169A
Authority
GB
United Kingdom
Prior art keywords
frequency
oscillator
amplifier
modulator
condenser
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
GB1669841A
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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 FR958876D priority Critical patent/FR958876A/fr
Application filed by International Standard Electric Corp filed Critical International Standard Electric Corp
Priority to GB1669841A priority patent/GB581169A/en
Publication of GB581169A publication Critical patent/GB581169A/en
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
    • G01S13/345—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 using triangular modulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
GB1669841A 1941-12-26 1941-12-26 Improvements relating to measurement of distances of obstacles by radio electric waves Expired GB581169A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR958876D FR958876A (https=) 1941-12-26
GB1669841A GB581169A (en) 1941-12-26 1941-12-26 Improvements relating to measurement of distances of obstacles by radio electric waves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1669841A GB581169A (en) 1941-12-26 1941-12-26 Improvements relating to measurement of distances of obstacles by radio electric waves

Publications (1)

Publication Number Publication Date
GB581169A true GB581169A (en) 1946-10-03

Family

ID=10082022

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1669841A Expired GB581169A (en) 1941-12-26 1941-12-26 Improvements relating to measurement of distances of obstacles by radio electric waves

Country Status (2)

Country Link
FR (1) FR958876A (https=)
GB (1) GB581169A (https=)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2965480B1 (fr) 2010-09-30 2013-03-08 Oreal Composition filtrante fluide anhydre sans alcanol en c1-c5 comprenant un polycondensat polyamide lipophile et un alcane volatil

Also Published As

Publication number Publication date
FR958876A (https=) 1950-03-21

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