GB1287461A - Radio angle measurement apparatus - Google Patents

Radio angle measurement apparatus

Info

Publication number
GB1287461A
GB1287461A GB4598069A GB4598069A GB1287461A GB 1287461 A GB1287461 A GB 1287461A GB 4598069 A GB4598069 A GB 4598069A GB 4598069 A GB4598069 A GB 4598069A GB 1287461 A GB1287461 A GB 1287461A
Authority
GB
United Kingdom
Prior art keywords
values
measurement apparatus
angle measurement
radio
computer
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.)
Expired
Application number
GB4598069A
Inventor
Masaru Watanabe
Nobuharu Yamauchi
Naoki Hashimoto
Tetsuo Tamama
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to GB4598069A priority Critical patent/GB1287461A/en
Priority to AU61205/69A priority patent/AU435708B2/en
Priority to DE19691948162 priority patent/DE1948162B2/en
Priority to FR6934221A priority patent/FR2048232A5/fr
Priority to NL6915758A priority patent/NL166549C/en
Publication of GB1287461A publication Critical patent/GB1287461A/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
    • G01S3/46—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

Abstract

1287461 Radio direction-finders MITSUBISHI DENKI KK 18 Sept 1969 45980/69 Heading H4D Relates to a direction-finder based on that of Specification 1,286,105. In an embodiment comprising three aerials 1, 2, 3, means 5, 6 affording digital values of phase differences # 1 , # 2 , a computer 101 and a correlator as described in the aforementioned Specification. The computer forms values X, Y related to # 1 , # 2 by the equations: where α, # as illustrated in Fig. 7. A giving incoming signal direction from the normal to the line of the aerial array corresponds to a parallelogramic domain of values X, Y as discussed in detail in the Specification, Figs. 8 to 12 (none shown). The correlation of X, Y domains for discrete values of direction may be arranged according to a binary code, Fig. 14 (not shown).
GB4598069A 1969-09-18 1969-09-18 Radio angle measurement apparatus Expired GB1287461A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB4598069A GB1287461A (en) 1969-09-18 1969-09-18 Radio angle measurement apparatus
AU61205/69A AU435708B2 (en) 1969-09-18 1969-09-22 Radio angle measurement apparatus
DE19691948162 DE1948162B2 (en) 1969-09-18 1969-09-23 Measuring device for measuring radio angles
FR6934221A FR2048232A5 (en) 1969-09-18 1969-10-07
NL6915758A NL166549C (en) 1969-09-18 1969-10-17 RADIO ANGLE MEASURING DEVICE.

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
GB4598069A GB1287461A (en) 1969-09-18 1969-09-18 Radio angle measurement apparatus
AU61205/69A AU435708B2 (en) 1969-09-18 1969-09-22 Radio angle measurement apparatus
DE19691948162 DE1948162B2 (en) 1969-09-18 1969-09-23 Measuring device for measuring radio angles
FR6934221A FR2048232A5 (en) 1969-09-18 1969-10-07
NL6915758A NL166549C (en) 1969-09-18 1969-10-17 RADIO ANGLE MEASURING DEVICE.

Publications (1)

Publication Number Publication Date
GB1287461A true GB1287461A (en) 1972-08-31

Family

ID=27507121

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4598069A Expired GB1287461A (en) 1969-09-18 1969-09-18 Radio angle measurement apparatus

Country Status (5)

Country Link
AU (1) AU435708B2 (en)
DE (1) DE1948162B2 (en)
FR (1) FR2048232A5 (en)
GB (1) GB1287461A (en)
NL (1) NL166549C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2569856A1 (en) * 1980-02-22 1986-03-07 Thomson Csf Interferometer with large angular aperture and broad frequency pass band

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS544235B1 (en) * 1968-09-05 1979-03-03
DE2242790B2 (en) * 1972-08-31 1976-10-21 Hißen, Helmut, Dr.-Ing., 5481 Nierendorf; Kosel, Georg, Dr.-Ing., 5483 Bad Neuenahr; Krätzig, Gudrun, 5300 Bonn-Bad Godesberg DIGITAL RECEIVER WITH SPECTRUM EVALUATION

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2569856A1 (en) * 1980-02-22 1986-03-07 Thomson Csf Interferometer with large angular aperture and broad frequency pass band

Also Published As

Publication number Publication date
AU435708B2 (en) 1973-05-15
NL6915758A (en) 1971-04-20
FR2048232A5 (en) 1971-03-19
NL166549C (en) 1981-08-17
DE1948162A1 (en) 1971-04-08
AU6120569A (en) 1971-03-25
DE1948162B2 (en) 1975-06-26
NL166549B (en) 1981-03-16

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years