GB817486A - Improvements in and relating to direction finders - Google Patents

Improvements in and relating to direction finders

Info

Publication number
GB817486A
GB817486A GB611156A GB611156A GB817486A GB 817486 A GB817486 A GB 817486A GB 611156 A GB611156 A GB 611156A GB 611156 A GB611156 A GB 611156A GB 817486 A GB817486 A GB 817486A
Authority
GB
United Kingdom
Prior art keywords
photo
light beam
output
centre
fed
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
GB611156A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB817486A publication Critical patent/GB817486A/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
    • 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
    • G01S3/78—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 electromagnetic waves other than radio waves
    • G01S3/782—Systems for determining direction or deviation from predetermined direction
    • G01S3/787—Systems for determining direction or deviation from predetermined direction using rotating reticles producing a direction-dependent modulation characteristic
    • G01S3/788—Systems for determining direction or deviation from predetermined direction using rotating reticles producing a direction-dependent modulation characteristic producing a frequency modulation characteristic
    • 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
    • G01S3/78—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 electromagnetic waves other than radio waves
    • G01S3/782—Systems for determining direction or deviation from predetermined direction
    • G01S3/785—Systems for determining direction or deviation from predetermined direction using adjustment of orientation of directivity characteristics of a detector or detector system to give a desired condition of signal derived from that detector or detector system
    • G01S3/786—Systems for determining direction or deviation from predetermined direction using adjustment of orientation of directivity characteristics of a detector or detector system to give a desired condition of signal derived from that detector or detector system the desired condition being maintained automatically

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Lasers (AREA)
  • Mechanical Light Control Or Optical Switches (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
GB611156A 1955-03-01 1956-02-28 Improvements in and relating to direction finders Expired GB817486A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR686563 1955-03-01

Publications (1)

Publication Number Publication Date
GB817486A true GB817486A (en) 1959-07-29

Family

ID=8700660

Family Applications (1)

Application Number Title Priority Date Filing Date
GB611156A Expired GB817486A (en) 1955-03-01 1956-02-28 Improvements in and relating to direction finders

Country Status (2)

Country Link
DE (2) DE1303486B (enrdf_load_stackoverflow)
GB (1) GB817486A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2382248A (en) * 1982-03-20 2003-05-21 British Aerospace Alignment of acquisition systems

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2628117C2 (de) * 1976-06-23 1982-04-22 Eltro GmbH, Gesellschaft für Strahlungstechnik, 6900 Heidelberg Verfahren und Vorrichtung zur Nachbildung von Signalen
DE3410564C2 (de) * 1983-03-26 1985-07-18 Eltro GmbH, Gesellschaft für Strahlungstechnik, 6900 Heidelberg Verfahren und Vorrichtung zum Orten eines wärmeabstrahlenden Zieles und zur Bestimmung seiner Richtung
FR2561785B1 (fr) * 1984-03-22 1990-05-25 Eltro Gmbh Procede et dispositif visant a la detection d'un objectif a emission thermique et a la determination de sa direction

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2382248A (en) * 1982-03-20 2003-05-21 British Aerospace Alignment of acquisition systems
GB2382248B (en) * 1982-03-20 2003-10-29 British Aerospace Alignment of acquisition systems

Also Published As

Publication number Publication date
DE1303486B (enrdf_load_stackoverflow) 1972-01-13
DE1423696A1 (de) 1968-10-24

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