GB585826A - Improvements in or relating to the detection of obstacles by means of electromagnetic impulses - Google Patents

Improvements in or relating to the detection of obstacles by means of electromagnetic impulses

Info

Publication number
GB585826A
GB585826A GB329641A GB329641A GB585826A GB 585826 A GB585826 A GB 585826A GB 329641 A GB329641 A GB 329641A GB 329641 A GB329641 A GB 329641A GB 585826 A GB585826 A GB 585826A
Authority
GB
United Kingdom
Prior art keywords
impulses
network
circuit
valve
terminals
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
GB329641A
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 FR958705D priority Critical patent/FR958705A/fr
Priority to BE476541D priority patent/BE476541A/xx
Application filed by Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB329641A priority patent/GB585826A/en
Publication of GB585826A publication Critical patent/GB585826A/en
Priority to ES0177226A priority patent/ES177226A1/es
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
    • 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
    • G01S1/08—Systems for determining direction or position line
    • G01S1/20—Systems for determining direction or position line using a comparison of transit time of synchronised signals transmitted from non-directional antennas or antenna systems spaced apart, i.e. path-difference systems
    • G01S1/24—Systems for determining direction or position line using a comparison of transit time of synchronised signals transmitted from non-directional antennas or antenna systems spaced apart, i.e. path-difference systems the synchronised signals being pulses or equivalent modulations on carrier waves and the transit times being compared by measuring the difference in arrival time of a significant part of the modulations, e.g. LORAN systems
    • 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
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/03—Details of HF subsystems specially adapted therefor, e.g. common to transmitter and receiver
    • G01S7/034—Duplexers

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
GB329641A 1941-03-11 1941-03-11 Improvements in or relating to the detection of obstacles by means of electromagnetic impulses Expired GB585826A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR958705D FR958705A (de) 1941-03-11
BE476541D BE476541A (de) 1941-03-11
GB329641A GB585826A (en) 1941-03-11 1941-03-11 Improvements in or relating to the detection of obstacles by means of electromagnetic impulses
ES0177226A ES177226A1 (es) 1941-03-11 1947-03-13 Mejoras en o relativas a sistemas para la deteccion de obstaculos por medio de impulsos electromagneticos

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB329641A GB585826A (en) 1941-03-11 1941-03-11 Improvements in or relating to the detection of obstacles by means of electromagnetic impulses

Publications (1)

Publication Number Publication Date
GB585826A true GB585826A (en) 1947-02-26

Family

ID=9755620

Family Applications (1)

Application Number Title Priority Date Filing Date
GB329641A Expired GB585826A (en) 1941-03-11 1941-03-11 Improvements in or relating to the detection of obstacles by means of electromagnetic impulses

Country Status (4)

Country Link
BE (1) BE476541A (de)
ES (1) ES177226A1 (de)
FR (1) FR958705A (de)
GB (1) GB585826A (de)

Also Published As

Publication number Publication date
FR958705A (de) 1950-03-17
BE476541A (de)
ES177226A1 (es) 1947-04-16

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