JPS5729967A - Direction discriminating device for radio interference wave of direction finder - Google Patents

Direction discriminating device for radio interference wave of direction finder

Info

Publication number
JPS5729967A
JPS5729967A JP10441180A JP10441180A JPS5729967A JP S5729967 A JPS5729967 A JP S5729967A JP 10441180 A JP10441180 A JP 10441180A JP 10441180 A JP10441180 A JP 10441180A JP S5729967 A JPS5729967 A JP S5729967A
Authority
JP
Japan
Prior art keywords
radio interference
waves
radio
interference waves
frequency component
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
JP10441180A
Other languages
Japanese (ja)
Other versions
JPS5926909B2 (en
Inventor
Kenzo Mori
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.)
Taiyo Musen Co Ltd
Original Assignee
Taiyo Musen Co 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 Taiyo Musen Co Ltd filed Critical Taiyo Musen Co Ltd
Priority to JP10441180A priority Critical patent/JPS5926909B2/en
Publication of JPS5729967A publication Critical patent/JPS5729967A/en
Publication of JPS5926909B2 publication Critical patent/JPS5926909B2/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
    • G01S3/58—Rotating or oscillating beam systems using continuous analysis of received signal for determining direction in the plane of rotation or oscillation or for determining deviation from a predetermined direction in such a plane
    • G01S3/60—Broad-beam systems producing in the receiver a substantially sinusoidal envelope signal of the carrier wave of the beam, the phase angle of which is dependent upon the angle between the direction of the transmitter from the receiver and a reference direction from the receiver, e.g. cardioid system

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)
  • Radar Systems Or Details Thereof (AREA)

Abstract

PURPOSE:To detect arrival directions of two radio waves at the same time, and to prevent an observation error which is caused by radio interference, by selecting a signal of the bent frequency, when there are plural radio interference waves. CONSTITUTION:Loop antennas 1, 2 are placed so that each directivity meets at right angles, and each output is provided to balanced modulators 3, 4. In case each of two radio interference waves has been received singly, a send-out signal from a synthesizer 6 is provided to a receiving part 10. A receiving output is detected 11, and after that, it is applied to a BPF12, a low frequency component is removed, only a bent frequency component is amplified by a tuning amplifier 13, and is provided to a CRT driving circuit 16 through a detector 14. Accordingly, two propellerlike graphite forms (p), (q) are displayed on a CRT 17, and each arrival direction of two radio interference waves, or its reverse direction is indicated by each graphic form.
JP10441180A 1980-07-31 1980-07-31 Interference wave direction separation device for direction finder Expired JPS5926909B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10441180A JPS5926909B2 (en) 1980-07-31 1980-07-31 Interference wave direction separation device for direction finder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10441180A JPS5926909B2 (en) 1980-07-31 1980-07-31 Interference wave direction separation device for direction finder

Publications (2)

Publication Number Publication Date
JPS5729967A true JPS5729967A (en) 1982-02-18
JPS5926909B2 JPS5926909B2 (en) 1984-07-02

Family

ID=14379956

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10441180A Expired JPS5926909B2 (en) 1980-07-31 1980-07-31 Interference wave direction separation device for direction finder

Country Status (1)

Country Link
JP (1) JPS5926909B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6299952U (en) * 1985-12-12 1987-06-25

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6299952U (en) * 1985-12-12 1987-06-25

Also Published As

Publication number Publication date
JPS5926909B2 (en) 1984-07-02

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