GB9823063D0 - Direction finding unit - Google Patents

Direction finding unit

Info

Publication number
GB9823063D0
GB9823063D0 GBGB9823063.4A GB9823063A GB9823063D0 GB 9823063 D0 GB9823063 D0 GB 9823063D0 GB 9823063 A GB9823063 A GB 9823063A GB 9823063 D0 GB9823063 D0 GB 9823063D0
Authority
GB
United Kingdom
Prior art keywords
direction finding
finding unit
unit
finding
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Withdrawn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
GBGB9823063.4A
Other versions
GB2346753A (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.)
RNLI TRADING Ltd
Original Assignee
RNLI TRADING 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 RNLI TRADING Ltd filed Critical RNLI TRADING Ltd
Priority to GB9823063A priority Critical patent/GB2346753A/en
Publication of GB9823063D0 publication Critical patent/GB9823063D0/en
Publication of GB2346753A publication Critical patent/GB2346753A/en
Withdrawn legal-status Critical Current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
    • G01S3/04—Details
    • G01S3/046—Displays or indicators
    • 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
    • G01S3/04—Details
    • G01S3/043—Receivers
    • 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
    • G01S3/48—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 continuous or intermittent and the phase difference of signals derived therefrom being measured

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
GB9823063A 1998-10-21 1998-10-21 Direction finding aerials Withdrawn GB2346753A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9823063A GB2346753A (en) 1998-10-21 1998-10-21 Direction finding aerials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9823063A GB2346753A (en) 1998-10-21 1998-10-21 Direction finding aerials

Publications (2)

Publication Number Publication Date
GB9823063D0 true GB9823063D0 (en) 1998-12-16
GB2346753A GB2346753A (en) 2000-08-16

Family

ID=10841037

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9823063A Withdrawn GB2346753A (en) 1998-10-21 1998-10-21 Direction finding aerials

Country Status (1)

Country Link
GB (1) GB2346753A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0325622D0 (en) 2003-11-03 2003-12-10 Cambridge Consultants System for determining positional information
CN110380209A (en) * 2019-07-17 2019-10-25 上海深迅通信技术有限公司 A kind of hand-held direction-finder antenna
US20210349177A1 (en) * 2020-05-08 2021-11-11 7hugs Labs SAS Low profile pointing device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2147760B (en) * 1983-10-07 1987-04-15 Racal Res Ltd Direction finding systems
GB2261788A (en) * 1991-09-26 1993-05-26 Ist Lab Ltd A location system
DE4318548A1 (en) * 1993-06-04 1994-12-08 Rohde & Schwarz Interferometer direction finder
FR2748618B1 (en) * 1996-05-07 1998-08-14 Thomson Csf INTERFEROMETRIC MEASURING DEVICE WITH A SUPERHETERODYNE RECEPTOR
US5657027A (en) * 1996-06-02 1997-08-12 Hughes Electronics Two dimensional interferometer array

Also Published As

Publication number Publication date
GB2346753A (en) 2000-08-16

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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)