GB2007059A - Radio direction finder - Google Patents

Radio direction finder

Info

Publication number
GB2007059A
GB2007059A GB7834997A GB7834997A GB2007059A GB 2007059 A GB2007059 A GB 2007059A GB 7834997 A GB7834997 A GB 7834997A GB 7834997 A GB7834997 A GB 7834997A GB 2007059 A GB2007059 A GB 2007059A
Authority
GB
United Kingdom
Prior art keywords
direction finder
signals
receiver
radio beacon
sampled
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.)
Granted
Application number
GB7834997A
Other versions
GB2007059B (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.)
Aubrey M C
Original Assignee
Aubrey M C
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 Aubrey M C filed Critical Aubrey M C
Priority to GB7834997A priority Critical patent/GB2007059B/en
Publication of GB2007059A publication Critical patent/GB2007059A/en
Application granted granted Critical
Publication of GB2007059B publication Critical patent/GB2007059B/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
    • G01S3/02—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
    • G01S3/38—Systems for determining direction or deviation from predetermined direction using adjustment of real or effective orientation of directivity characteristic of an antenna or an antenna system to give a desired condition of signal derived from that antenna or antenna system, e.g. to give a maximum or minimum signal
    • G01S3/40—Systems for determining direction or deviation from predetermined direction using adjustment of real or effective orientation of directivity characteristic of an antenna or an antenna system to give a desired condition of signal derived from that antenna or antenna system, e.g. to give a maximum or minimum signal adjusting orientation of a single directivity characteristic to produce maximum or minimum signal, e.g. rotatable loop antenna or equivalent goniometer system
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

The invention relates to an automatic direction finder for marine vessels. The direction finder includes a rotatable aerial and a receiver for receiving a signal from a radio beacon, a circuit for sampling the output signals of the receiver, an analogue to digital converter for converting the sampled signals into digital signals and a processor which statistically analyses the digital signals to derive the bearing of the radio beacon. The processing may be simply an averaging technique or may include fitting a cosine wave to the sampled signal amplitudes. A suitably programmed microprocessor is used.
GB7834997A 1977-10-27 1978-08-30 Radio direction finder Expired GB2007059B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7834997A GB2007059B (en) 1977-10-27 1978-08-30 Radio direction finder

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB4484477 1977-10-27
GB7834997A GB2007059B (en) 1977-10-27 1978-08-30 Radio direction finder

Publications (2)

Publication Number Publication Date
GB2007059A true GB2007059A (en) 1979-05-10
GB2007059B GB2007059B (en) 1982-05-26

Family

ID=26265460

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7834997A Expired GB2007059B (en) 1977-10-27 1978-08-30 Radio direction finder

Country Status (1)

Country Link
GB (1) GB2007059B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2508654A1 (en) * 1981-06-30 1982-12-31 Signal Scanning Prod NAVIGATION SYSTEM
EP0160197A1 (en) * 1984-03-30 1985-11-06 Yves Effront Device of identifying the code signal of a radio beacon consisting of a series of elementary signals
FR2712989A1 (en) * 1993-11-22 1995-06-02 United Technologies Corp Direction finding system to locate direction of HF radio transmission
EP3667355A1 (en) * 2018-12-12 2020-06-17 Rohde & Schwarz GmbH & Co. KG Method for radio direction finding, direction finding system as well as platform

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2508654A1 (en) * 1981-06-30 1982-12-31 Signal Scanning Prod NAVIGATION SYSTEM
EP0160197A1 (en) * 1984-03-30 1985-11-06 Yves Effront Device of identifying the code signal of a radio beacon consisting of a series of elementary signals
FR2712989A1 (en) * 1993-11-22 1995-06-02 United Technologies Corp Direction finding system to locate direction of HF radio transmission
EP3667355A1 (en) * 2018-12-12 2020-06-17 Rohde & Schwarz GmbH & Co. KG Method for radio direction finding, direction finding system as well as platform
CN111307151A (en) * 2018-12-12 2020-06-19 罗德施瓦兹两合股份有限公司 Method, direction finding system and platform for radio direction finding
US11835637B2 (en) 2018-12-12 2023-12-05 Rohde & Schwarz Gmbh & Co. Kg Method for radio direction finding, direction finding system as well as platform

Also Published As

Publication number Publication date
GB2007059B (en) 1982-05-26

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee