ES177226A1 - Mejoras en o relativas a sistemas para la deteccion de obstaculos por medio de impulsos electromagneticos - Google Patents

Mejoras en o relativas a sistemas para la deteccion de obstaculos por medio de impulsos electromagneticos

Info

Publication number
ES177226A1
ES177226A1 ES0177226A ES177226A ES177226A1 ES 177226 A1 ES177226 A1 ES 177226A1 ES 0177226 A ES0177226 A ES 0177226A ES 177226 A ES177226 A ES 177226A ES 177226 A1 ES177226 A1 ES 177226A1
Authority
ES
Spain
Prior art keywords
receiver
obstacles
systems
detection
pulses
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
ES0177226A
Other languages
English (en)
Spanish (es)
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.)
Nokia Spain SA
Original Assignee
Alcatel Espana SA
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 Alcatel Espana SA filed Critical Alcatel Espana SA
Publication of ES177226A1 publication Critical 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)
ES0177226A 1941-03-11 1947-03-13 Mejoras en o relativas a sistemas para la deteccion de obstaculos por medio de impulsos electromagneticos Expired ES177226A1 (es)

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
ES177226A1 true ES177226A1 (es) 1947-04-16

Family

ID=9755620

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0177226A Expired ES177226A1 (es) 1941-03-11 1947-03-13 Mejoras en o relativas a sistemas para la deteccion de obstaculos por medio de impulsos electromagneticos

Country Status (4)

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

Also Published As

Publication number Publication date
FR958705A (fr) 1950-03-17
BE476541A (fr)
GB585826A (en) 1947-02-26

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