GB9213336D0 - Method and apparatus for measurement of direction - Google Patents

Method and apparatus for measurement of direction

Info

Publication number
GB9213336D0
GB9213336D0 GB929213336A GB9213336A GB9213336D0 GB 9213336 D0 GB9213336 D0 GB 9213336D0 GB 929213336 A GB929213336 A GB 929213336A GB 9213336 A GB9213336 A GB 9213336A GB 9213336 D0 GB9213336 D0 GB 9213336D0
Authority
GB
United Kingdom
Prior art keywords
measurement
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.)
Withdrawn
Application number
GB929213336A
Other versions
GB2256925A (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.)
BTG International Ltd
Original Assignee
British Technology Group Ltd
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 British Technology Group Ltd filed Critical British Technology Group Ltd
Publication of GB9213336D0 publication Critical patent/GB9213336D0/en
Publication of GB2256925A publication Critical patent/GB2256925A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
    • 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
GB9213336A 1991-06-21 1992-06-19 Method and apparatus for measurement of the direction of a radiation source Withdrawn GB2256925A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB919113494A GB9113494D0 (en) 1991-06-21 1991-06-21 Method and apparatus for measurement of direction

Publications (2)

Publication Number Publication Date
GB9213336D0 true GB9213336D0 (en) 1992-08-05
GB2256925A GB2256925A (en) 1992-12-23

Family

ID=10697139

Family Applications (2)

Application Number Title Priority Date Filing Date
GB919113494A Pending GB9113494D0 (en) 1991-06-21 1991-06-21 Method and apparatus for measurement of direction
GB9213336A Withdrawn GB2256925A (en) 1991-06-21 1992-06-19 Method and apparatus for measurement of the direction of a radiation source

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB919113494A Pending GB9113494D0 (en) 1991-06-21 1991-06-21 Method and apparatus for measurement of direction

Country Status (1)

Country Link
GB (2) GB9113494D0 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4441809A (en) * 1979-10-16 1984-04-10 Dudley James R Method and apparatus for determining position
US4627724A (en) * 1983-07-08 1986-12-09 The United States Of America As Represented By The Secretary Of The Army Radiation scanning and detection system
JPH061197B2 (en) * 1985-09-11 1994-01-05 株式会社東芝 Stars Skyana

Also Published As

Publication number Publication date
GB9113494D0 (en) 1991-08-07
GB2256925A (en) 1992-12-23

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)