JPS55124079A - Direction detecting device - Google Patents

Direction detecting device

Info

Publication number
JPS55124079A
JPS55124079A JP3114279A JP3114279A JPS55124079A JP S55124079 A JPS55124079 A JP S55124079A JP 3114279 A JP3114279 A JP 3114279A JP 3114279 A JP3114279 A JP 3114279A JP S55124079 A JPS55124079 A JP S55124079A
Authority
JP
Japan
Prior art keywords
phase
signal
oscillator
directivities
synthesis circuit
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
JP3114279A
Other languages
Japanese (ja)
Other versions
JPS597946B2 (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 JP54031142A priority Critical patent/JPS597946B2/en
Publication of JPS55124079A publication Critical patent/JPS55124079A/en
Publication of JPS597946B2 publication Critical patent/JPS597946B2/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
    • G01S3/143—Systems for determining direction or deviation from predetermined direction by vectorial combination of signals derived from differently oriented antennae

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 enable the numerical displaying of bearings to be made readily without requiring any mechanical rotating mechanism by using a plurality of directional antennas and an oscillator or the like which transmits the plural AC signals having the phase angles respectively corresponding to the directions of their respective directivities. CONSTITUTION:The AC signals having the phase angles corresponding respectively to the directions of the directivities of a pair of antennas 1, 2 whose directivities orthogonally intersect with each other are transmitted from an oscillator 7 to modulators 3, 4 and the outputs of the directional antennas 1, 2 are respectively modulated. These modulated outputs are superposed in a synthesis circuit 8. The output of a non-directional vertical antenna 5 is applied to a 90 deg. phase shifter 6 and this is applied to the synthesis circuit 8. A receiving circuit 9 demodulates the output signal of the synthesis circuit 8 and applies the same to a filter 10 which in turn extracts the AC signal. This signal is applied together with the signal of a reference phase obtainable from the oscillator 7 to a phase comparator 11 which then detects the phase difference between them and this is displayed by a display device 12.
JP54031142A 1979-03-19 1979-03-19 direction finder Expired JPS597946B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54031142A JPS597946B2 (en) 1979-03-19 1979-03-19 direction finder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54031142A JPS597946B2 (en) 1979-03-19 1979-03-19 direction finder

Publications (2)

Publication Number Publication Date
JPS55124079A true JPS55124079A (en) 1980-09-24
JPS597946B2 JPS597946B2 (en) 1984-02-21

Family

ID=12323180

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54031142A Expired JPS597946B2 (en) 1979-03-19 1979-03-19 direction finder

Country Status (1)

Country Link
JP (1) JPS597946B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4804824A (en) * 1986-09-26 1989-02-14 Tokyo Electric Co., Ltd. Register drawer assembly

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1279861A (en) * 1968-07-05 1972-06-28 Telefunken Patent Method of direction-finding wherein a voltage is produced, the phase position of which in relation to the phase position of a reference voltage represents a measure of the angle of incidence
US3916411A (en) * 1972-08-01 1975-10-28 Guenter Fiedler Electronic direction finding apparatus
JPS51132988A (en) * 1975-05-15 1976-11-18 Taiyo Musen Kk Directional finder

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1279861A (en) * 1968-07-05 1972-06-28 Telefunken Patent Method of direction-finding wherein a voltage is produced, the phase position of which in relation to the phase position of a reference voltage represents a measure of the angle of incidence
US3916411A (en) * 1972-08-01 1975-10-28 Guenter Fiedler Electronic direction finding apparatus
JPS51132988A (en) * 1975-05-15 1976-11-18 Taiyo Musen Kk Directional finder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4804824A (en) * 1986-09-26 1989-02-14 Tokyo Electric Co., Ltd. Register drawer assembly

Also Published As

Publication number Publication date
JPS597946B2 (en) 1984-02-21

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