JPS564072A - Direction finding system - Google Patents

Direction finding system

Info

Publication number
JPS564072A
JPS564072A JP7967479A JP7967479A JPS564072A JP S564072 A JPS564072 A JP S564072A JP 7967479 A JP7967479 A JP 7967479A JP 7967479 A JP7967479 A JP 7967479A JP S564072 A JPS564072 A JP S564072A
Authority
JP
Japan
Prior art keywords
polarization component
antenna
cross polarization
wave
psi
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
JP7967479A
Other languages
Japanese (ja)
Other versions
JPS5827467B2 (en
Inventor
Takashi Yamada
Tadashi Takano
Yoshifusa Yamada
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP7967479A priority Critical patent/JPS5827467B2/en
Publication of JPS564072A publication Critical patent/JPS564072A/en
Publication of JPS5827467B2 publication Critical patent/JPS5827467B2/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
    • G01S3/146—Systems for determining direction or deviation from predetermined direction by comparing linear polarisation components

Abstract

PURPOSE:To make possible direction finding while making the equipment smaller, lighter and highly reliable by detecting the amplitude ratio and the phase difference between the main polarization component and the cross polarization component of the incoming wave. CONSTITUTION:The antenna 1 is used for transmitting and recieving, in which the cross polarization component fed by the linearly polarized wave with respect to the radiation characteristics thereof has the cyclic phase distribution in the direction of the bearing psi in the coordinate system with the angle to the center axis 2 of the beam as zenith angle theta. Then, the phase difference is detected 22 between the main polarization component and the cross polarization component of the wave transmitted or received to determine the bearing psi to the radio wave referring to the forecast phase distribution 28 of the antenna 1. The amplitude ratio is detected 21 between the main polarization component and the cross polarization component to determine the zenith angle theta to the radio wave referring to the forecast amplitude distribution 27 of the antenna 1. As a result, the finding of the direction can be done easily.
JP7967479A 1979-06-26 1979-06-26 direction finding method Expired JPS5827467B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7967479A JPS5827467B2 (en) 1979-06-26 1979-06-26 direction finding method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7967479A JPS5827467B2 (en) 1979-06-26 1979-06-26 direction finding method

Publications (2)

Publication Number Publication Date
JPS564072A true JPS564072A (en) 1981-01-16
JPS5827467B2 JPS5827467B2 (en) 1983-06-09

Family

ID=13696729

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7967479A Expired JPS5827467B2 (en) 1979-06-26 1979-06-26 direction finding method

Country Status (1)

Country Link
JP (1) JPS5827467B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020012575A1 (en) * 2018-07-11 2020-01-16 三菱電機株式会社 Position estimation device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0425900Y2 (en) * 1985-08-02 1992-06-22
JPH049831Y2 (en) * 1985-08-02 1992-03-11

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020012575A1 (en) * 2018-07-11 2020-01-16 三菱電機株式会社 Position estimation device

Also Published As

Publication number Publication date
JPS5827467B2 (en) 1983-06-09

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