DE2229773A1 - Anordnung zur Richtungsbestimmung - Google Patents

Anordnung zur Richtungsbestimmung

Info

Publication number
DE2229773A1
DE2229773A1 DE19722229773 DE2229773A DE2229773A1 DE 2229773 A1 DE2229773 A1 DE 2229773A1 DE 19722229773 DE19722229773 DE 19722229773 DE 2229773 A DE2229773 A DE 2229773A DE 2229773 A1 DE2229773 A1 DE 2229773A1
Authority
DE
Germany
Prior art keywords
input
circuit
gate
output
time comparison
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.)
Pending
Application number
DE19722229773
Other languages
German (de)
English (en)
Inventor
David Bruce Minneapolis; Harman Charles Price Roseville; Folien Robert John Minneapolis; Minn. Bennett (V.StA.)
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.)
Honeywell Inc
Original Assignee
Honeywell Inc
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 Honeywell Inc filed Critical Honeywell Inc
Publication of DE2229773A1 publication Critical patent/DE2229773A1/de
Pending 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
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
    • 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
    • G01S13/42—Simultaneous measurement of distance and other co-ordinates
    • 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
    • G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
    • G01S13/76—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted
    • 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
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
    • G01S3/14—Systems for determining direction or deviation from predetermined direction
    • G01S3/46—Systems for determining direction or deviation from predetermined direction using antennas spaced apart and measuring phase or time difference between signals therefrom, i.e. path-difference systems
    • G01S3/50—Systems for determining direction or deviation from predetermined direction using antennas spaced apart and measuring phase or time difference between signals therefrom, i.e. path-difference systems the waves arriving at the antennas being pulse modulated and the time difference of their arrival being measured

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Burglar Alarm Systems (AREA)
  • Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
DE19722229773 1971-06-23 1972-06-19 Anordnung zur Richtungsbestimmung Pending DE2229773A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15574771A 1971-06-23 1971-06-23

Publications (1)

Publication Number Publication Date
DE2229773A1 true DE2229773A1 (de) 1972-12-28

Family

ID=22556641

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19722229773 Pending DE2229773A1 (de) 1971-06-23 1972-06-19 Anordnung zur Richtungsbestimmung

Country Status (7)

Country Link
US (1) US3761930A (https=)
CA (1) CA951003A (https=)
DE (1) DE2229773A1 (https=)
FR (1) FR2143317B1 (https=)
GB (1) GB1350031A (https=)
IT (1) IT958428B (https=)
NL (1) NL7208292A (https=)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2204402B (en) * 1980-05-20 1989-06-28 Secr Defence Method and apparatus for audio location
DE3381357D1 (de) * 1982-12-22 1990-04-26 Marconi Co Ltd Akustische peilsysteme.
EP2741106A1 (en) * 2012-12-10 2014-06-11 AIRBUS HELICOPTERS DEUTSCHLAND GmbH An obstacle and terrain warning radar system for a rotorcraft
US11094209B1 (en) 2019-08-22 2021-08-17 Facebook, Inc. Location determination when satellite navigation system is inaccessible

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1225489A (https=) * 1967-10-03 1971-03-17
US3490024A (en) * 1968-09-30 1970-01-13 Us Navy Direction finder

Also Published As

Publication number Publication date
FR2143317A1 (https=) 1973-02-02
IT958428B (it) 1973-10-20
FR2143317B1 (https=) 1977-12-23
US3761930A (en) 1973-09-25
GB1350031A (en) 1974-04-18
NL7208292A (https=) 1972-12-28
CA951003A (en) 1974-07-09

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Legal Events

Date Code Title Description
OHA Expiration of time for request for examination