JPS54118790A - Mobile object measurement system - Google Patents

Mobile object measurement system

Info

Publication number
JPS54118790A
JPS54118790A JP2617378A JP2617378A JPS54118790A JP S54118790 A JPS54118790 A JP S54118790A JP 2617378 A JP2617378 A JP 2617378A JP 2617378 A JP2617378 A JP 2617378A JP S54118790 A JPS54118790 A JP S54118790A
Authority
JP
Japan
Prior art keywords
satellite
station
mobile object
lines
omega
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.)
Pending
Application number
JP2617378A
Other languages
Japanese (ja)
Inventor
Iwao Matsushita
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 ZOUSEN KENKIYUU KIYOUKA
SHIPBUILD RES ASSOC JAPAN
Fujitsu Ltd
Original Assignee
NIPPON ZOUSEN KENKIYUU KIYOUKA
SHIPBUILD RES ASSOC JAPAN
Fujitsu 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 NIPPON ZOUSEN KENKIYUU KIYOUKA, SHIPBUILD RES ASSOC JAPAN, Fujitsu Ltd filed Critical NIPPON ZOUSEN KENKIYUU KIYOUKA
Priority to JP2617378A priority Critical patent/JPS54118790A/en
Publication of JPS54118790A publication Critical patent/JPS54118790A/en
Pending 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
    • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
    • G01S5/12—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves by co-ordinating position lines of different shape, e.g. hyperbolic, circular, elliptical or radial

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

PURPOSE:To secure an accurate position measurement for the mobile object by calculating the position of the mobile object with use of the two position lines of the radio navigation system plus a position line of a satellite. CONSTITUTION:The position measurement system comprises stationary or synchronous satellite 1, mobile object 2 such as a ship or plane, ground station 3 plus omega stations 4a-4c. Object 2 receives the omega signal from the omega station and also transmits the distance measurement signal to station 3 from object 2 via satellite 1 as shown by the solid lines. Station 3 transmits in return the measurement signal to object 2 via satellite 1 as shown by the dotted lines. Thus, object 2 calculates the distance between it and satellite 1 and then measures the position of its own based on the data of the distance and the position. In such way, the position measurement is carried out with use of three position lines in a high accuracy and with reduced error.
JP2617378A 1978-03-08 1978-03-08 Mobile object measurement system Pending JPS54118790A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2617378A JPS54118790A (en) 1978-03-08 1978-03-08 Mobile object measurement system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2617378A JPS54118790A (en) 1978-03-08 1978-03-08 Mobile object measurement system

Publications (1)

Publication Number Publication Date
JPS54118790A true JPS54118790A (en) 1979-09-14

Family

ID=12186137

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2617378A Pending JPS54118790A (en) 1978-03-08 1978-03-08 Mobile object measurement system

Country Status (1)

Country Link
JP (1) JPS54118790A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0815405A (en) * 1994-06-28 1996-01-19 Nec Corp Aircraft-position evaluating system in landing guidance

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0815405A (en) * 1994-06-28 1996-01-19 Nec Corp Aircraft-position evaluating system in landing guidance

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