GB586833A - Improvements in or relating to arrangements for locating objects by radio waves - Google Patents

Improvements in or relating to arrangements for locating objects by radio waves

Info

Publication number
GB586833A
GB586833A GB375842A GB375842A GB586833A GB 586833 A GB586833 A GB 586833A GB 375842 A GB375842 A GB 375842A GB 375842 A GB375842 A GB 375842A GB 586833 A GB586833 A GB 586833A
Authority
GB
United Kingdom
Prior art keywords
oscillator
pulses
saw
tooth
reflected
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
GB375842A
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.)
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 FR956800D priority Critical patent/FR956800A/fr
Priority to BE475377D priority patent/BE475377A/xx
Application filed by Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB375842A priority patent/GB586833A/en
Priority to GB1463345A priority patent/GB606118A/en
Priority to CH271410D priority patent/CH271410A/fr
Publication of GB586833A publication Critical patent/GB586833A/en
Priority to FR57704D priority patent/FR57704E/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
    • G01S13/10—Systems for measuring distance only using transmission of interrupted, pulse modulated waves
    • G01S13/24—Systems for measuring distance only using transmission of interrupted, pulse modulated waves using frequency agility of carrier wave
    • 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
    • G01S13/10—Systems for measuring distance only using transmission of interrupted, pulse modulated waves
    • G01S13/12—Systems for measuring distance only using transmission of interrupted, pulse modulated waves wherein the pulse-recurrence frequency is varied to provide a desired time relationship between the transmission of a pulse and the receipt of the echo of a preceding pulse

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)
GB375842A 1942-03-20 1942-03-20 Improvements in or relating to arrangements for locating objects by radio waves Expired GB586833A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
FR956800D FR956800A (enrdf_load_stackoverflow) 1942-03-20
BE475377D BE475377A (enrdf_load_stackoverflow) 1942-03-20
GB375842A GB586833A (en) 1942-03-20 1942-03-20 Improvements in or relating to arrangements for locating objects by radio waves
GB1463345A GB606118A (en) 1942-03-20 1945-06-08 Improvements in or relating to arrangements for locating obstacles by electromagnetic waves
CH271410D CH271410A (fr) 1942-03-20 1947-03-25 Installation pour déterminer la position d'un objet par ondes électro-magnétiques réfléchies.
FR57704D FR57704E (fr) 1942-03-20 1947-10-04 Méthodes de détermination de position d'obstacles par ondes électromagnétiques réfléchies

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB375842A GB586833A (en) 1942-03-20 1942-03-20 Improvements in or relating to arrangements for locating objects by radio waves

Publications (1)

Publication Number Publication Date
GB586833A true GB586833A (en) 1947-04-02

Family

ID=9764396

Family Applications (1)

Application Number Title Priority Date Filing Date
GB375842A Expired GB586833A (en) 1942-03-20 1942-03-20 Improvements in or relating to arrangements for locating objects by radio waves

Country Status (4)

Country Link
BE (1) BE475377A (enrdf_load_stackoverflow)
CH (1) CH271410A (enrdf_load_stackoverflow)
FR (1) FR956800A (enrdf_load_stackoverflow)
GB (1) GB586833A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
BE475377A (enrdf_load_stackoverflow)
FR956800A (enrdf_load_stackoverflow) 1950-02-07
CH271410A (fr) 1950-10-31

Similar Documents

Publication Publication Date Title
GB643167A (en) Improvements in and relating to time measuring apparatus
GB600945A (en) Improvements in and relating to pulse radar object locating systems
GB592577A (en) Improvements relating to calibration arrangements for oscillographs and their application to radio obstacle detection systems
US2678440A (en) Airborne moving target indicating radar system
US2454772A (en) Pulse echo system for distance measuring
GB626236A (en) Improvements in or relating to radar systems
US2685687A (en) Impulse generator for time indication
US2511599A (en) Range and direction finding apparatus
GB586833A (en) Improvements in or relating to arrangements for locating objects by radio waves
US2545503A (en) Radio object detection alarm
US2659076A (en) Moving object radio pulse-echo system
GB582492A (en) Improvements in or relating to apparatus for comparing the phase or time delay between two waves, and to distance measuring devices
US2570235A (en) Device for measurement of the distances of obstacles
GB1000520A (en) Improvements in radar systems
GB581982A (en) Improvements relating to electrical apparatus for the measurement of distances by the reflection of electromagnetic waves
US2495722A (en) Distance indicating system
US2397167A (en) Receiver protection circuit
US2961653A (en) Radio ranging devices
US2589860A (en) Altitude indicator system
GB975177A (en) Improvements in or relating to doppler radar apparatus
GB582187A (en) Improvements relating to arrangements for determining distance by reflection of electromagnetic waves
US3022503A (en) Continuous wave echo-type distance finder
US2689344A (en) Pulse modulated speech transmission system
GB592749A (en) Improvement in radio altimeters and speed indicators
GB597094A (en) Improvements in or relating to pulse radar systems