JPS55140302A - Antenna directivity control unit - Google Patents

Antenna directivity control unit

Info

Publication number
JPS55140302A
JPS55140302A JP4819479A JP4819479A JPS55140302A JP S55140302 A JPS55140302 A JP S55140302A JP 4819479 A JP4819479 A JP 4819479A JP 4819479 A JP4819479 A JP 4819479A JP S55140302 A JPS55140302 A JP S55140302A
Authority
JP
Japan
Prior art keywords
ship
fixed station
antenna
vector
vectors
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
JP4819479A
Other languages
Japanese (ja)
Other versions
JPS6147441B2 (en
Inventor
Takeshi Yoshida
Hidehiko Kasama
Kazuo Abe
Takehiko Kano
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.)
Japan Broadcasting Corp
Original Assignee
Nippon Hoso Kyokai NHK
Japan Broadcasting 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 Hoso Kyokai NHK, Japan Broadcasting Corp filed Critical Nippon Hoso Kyokai NHK
Priority to JP4819479A priority Critical patent/JPS55140302A/en
Publication of JPS55140302A publication Critical patent/JPS55140302A/en
Publication of JPS6147441B2 publication Critical patent/JPS6147441B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/02—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

PURPOSE:To detect automatically the current position of a moving object and cause the transmission antenna, which is mounted on the moving object, to direct always toward a fixed station, by operating a prescribed vector value. CONSTITUTION:Prescribed data is sent to operation part 5 from respective detection parts of the antenna directivity control unit provided in the moving object such as a ship. There, the relative speed vector to the tide is operated on a basis of speed vectors V and alpha of the ship and current speed vectors u and gamma of the tide. Then, the displacement vector of the ship at a prescribed time is operated. Next, new position vectors l and theta connecting the position of the ship and fixed station O are operated from the displacement vector above and position vectors l0 and theta0 connecting the start point of the ship and fixed station O. Then, antenna T is caused to direct toward the direction of the new position vector. Thus, the current position of the ship can be detected automatically, and the antenna can be caused to direct always toward the fixed station.
JP4819479A 1979-04-19 1979-04-19 Antenna directivity control unit Granted JPS55140302A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4819479A JPS55140302A (en) 1979-04-19 1979-04-19 Antenna directivity control unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4819479A JPS55140302A (en) 1979-04-19 1979-04-19 Antenna directivity control unit

Publications (2)

Publication Number Publication Date
JPS55140302A true JPS55140302A (en) 1980-11-01
JPS6147441B2 JPS6147441B2 (en) 1986-10-20

Family

ID=12796568

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4819479A Granted JPS55140302A (en) 1979-04-19 1979-04-19 Antenna directivity control unit

Country Status (1)

Country Link
JP (1) JPS55140302A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58161429A (en) * 1982-03-18 1983-09-26 Nippon Denso Co Ltd Driving device of car mounting antenna
JPS59189730A (en) * 1983-04-11 1984-10-27 Nippon Denso Co Ltd Controller of radio wave receiving direction for antenna of receiver of radio, television, or the like provided on moving object
JPS61224703A (en) * 1985-03-29 1986-10-06 Aisin Seiki Co Ltd Controller of attitude for antenna on mobile body

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58161429A (en) * 1982-03-18 1983-09-26 Nippon Denso Co Ltd Driving device of car mounting antenna
JPS59189730A (en) * 1983-04-11 1984-10-27 Nippon Denso Co Ltd Controller of radio wave receiving direction for antenna of receiver of radio, television, or the like provided on moving object
JPH055202B2 (en) * 1983-04-11 1993-01-21 Nippon Denso Co
JPS61224703A (en) * 1985-03-29 1986-10-06 Aisin Seiki Co Ltd Controller of attitude for antenna on mobile body
JPH0521362B2 (en) * 1985-03-29 1993-03-24 Aishin Seiki Kk

Also Published As

Publication number Publication date
JPS6147441B2 (en) 1986-10-20

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