JPS5761909A - Navigation device - Google Patents

Navigation device

Info

Publication number
JPS5761909A
JPS5761909A JP13383680A JP13383680A JPS5761909A JP S5761909 A JPS5761909 A JP S5761909A JP 13383680 A JP13383680 A JP 13383680A JP 13383680 A JP13383680 A JP 13383680A JP S5761909 A JPS5761909 A JP S5761909A
Authority
JP
Japan
Prior art keywords
longitude
latitude
besselian
case
converted
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
JP13383680A
Other languages
Japanese (ja)
Other versions
JPH0260988B2 (en
Inventor
Kenji Itani
Masahiko Kimura
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.)
Furuno Electric Co Ltd
Original Assignee
Furuno Electric 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 Furuno Electric Co Ltd filed Critical Furuno Electric Co Ltd
Priority to JP13383680A priority Critical patent/JPS5761909A/en
Publication of JPS5761909A publication Critical patent/JPS5761909A/en
Publication of JPH0260988B2 publication Critical patent/JPH0260988B2/ja
Granted 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
    • G01S5/10—Position of receiver fixed by co-ordinating a plurality of position lines defined by path-difference measurements, e.g. omega or decca systems

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)
  • Navigation (AREA)

Abstract

PURPOSE:To obtain the position of a boat with a small error in any sea area which is covered by lorans A and C, by setting two pieces of position line information at a certain latitude and longitude obtained by the converted value of compensation of geodetic system and based on a desired geodetic system. CONSTITUTION:The outputs of receivers 1 and 2 of lorans A and C are connected to a position line selection circut 4 and converted into a latitude and longitude through a latitude/longitude converting circuit 5. In this case, a geodetic systm conversion table 6 is provided for a conversion into the Besselian coordinates. In such constitution, the longitude and latitude of the Beseelian system is obtained by the above-mentioned circuit in case when theloran A chain is selected for the Besselian system by a switch 3. In the case of the WGS system loran C chain, the value is converted into the longitude and latitude corresponding to the Besselian system in reference to the table 6. As a result, the position lines of the loran A and C chains of different coordinate systems can be used for a hybrid to obtain the position of a boat with a small error.
JP13383680A 1980-09-25 1980-09-25 Navigation device Granted JPS5761909A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13383680A JPS5761909A (en) 1980-09-25 1980-09-25 Navigation device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13383680A JPS5761909A (en) 1980-09-25 1980-09-25 Navigation device

Publications (2)

Publication Number Publication Date
JPS5761909A true JPS5761909A (en) 1982-04-14
JPH0260988B2 JPH0260988B2 (en) 1990-12-18

Family

ID=15114170

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13383680A Granted JPS5761909A (en) 1980-09-25 1980-09-25 Navigation device

Country Status (1)

Country Link
JP (1) JPS5761909A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58193473A (en) * 1982-05-07 1983-11-11 Sanko Kisen Kk Position measuring system for composite hyperbolic navigation
JPS6457118A (en) * 1987-08-28 1989-03-03 Japan Aviation Electron Inertial navigator

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5029192A (en) * 1973-07-06 1975-03-25

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5029192A (en) * 1973-07-06 1975-03-25

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58193473A (en) * 1982-05-07 1983-11-11 Sanko Kisen Kk Position measuring system for composite hyperbolic navigation
JPS6457118A (en) * 1987-08-28 1989-03-03 Japan Aviation Electron Inertial navigator

Also Published As

Publication number Publication date
JPH0260988B2 (en) 1990-12-18

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