JPS6465474A - Satellite communicate and position measurement system for moving body - Google Patents

Satellite communicate and position measurement system for moving body

Info

Publication number
JPS6465474A
JPS6465474A JP62221589A JP22158987A JPS6465474A JP S6465474 A JPS6465474 A JP S6465474A JP 62221589 A JP62221589 A JP 62221589A JP 22158987 A JP22158987 A JP 22158987A JP S6465474 A JPS6465474 A JP S6465474A
Authority
JP
Japan
Prior art keywords
moving body
base station
position measurement
terminal
communication
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
JP62221589A
Other languages
Japanese (ja)
Other versions
JPH0525309B2 (en
Inventor
Osamu Ichiyoshi
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.)
NEC Corp
Original Assignee
NEC 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 NEC Corp filed Critical NEC Corp
Priority to JP62221589A priority Critical patent/JPS6465474A/en
Publication of JPS6465474A publication Critical patent/JPS6465474A/en
Publication of JPH0525309B2 publication Critical patent/JPH0525309B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Position Fixing By Use Of Radio Waves (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

PURPOSE:To enable sound volume communication and data communication by inserting a pilot signal into one frequency channel and sending it back by a normal single carrier per channel-frequency division multiple access system. CONSTITUTION:When the need for position measurement is generated on the side of a moving body 20, the moving body 20 sends a request for the position measurement to a base station 30 and a moving terminal 20-7 varies and sets the contents of commands (a) and (b). Then a signal received over a pilot channel ChP is passed to the communication frequency channel of its station and sent back to the base station 30. The base station receives it by base station antennas 3-1 and 3-2 and a base station terminal 30-11 detects the signal of the frequency channel and supplies it to a position measurement arithmetic part 30-10. The arithmetic part 30-10 calculates the distances between the moving body 20 and communication satellites 1-1 and 1-2 from the time difference between two outputs of the terminals 30-11 and the transmission timing of the pilot signal to determine the position of the moving body 20 by a trigonometric measuring method, and sends the result to the terminal 30-11; and the position measurement result is sent to the moving body 20 and inputted to a terminal 20-7.
JP62221589A 1987-09-04 1987-09-04 Satellite communicate and position measurement system for moving body Granted JPS6465474A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62221589A JPS6465474A (en) 1987-09-04 1987-09-04 Satellite communicate and position measurement system for moving body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62221589A JPS6465474A (en) 1987-09-04 1987-09-04 Satellite communicate and position measurement system for moving body

Publications (2)

Publication Number Publication Date
JPS6465474A true JPS6465474A (en) 1989-03-10
JPH0525309B2 JPH0525309B2 (en) 1993-04-12

Family

ID=16769119

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62221589A Granted JPS6465474A (en) 1987-09-04 1987-09-04 Satellite communicate and position measurement system for moving body

Country Status (1)

Country Link
JP (1) JPS6465474A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4782336B2 (en) * 1999-08-19 2011-09-28 インテグラル・システムズ，インコーポレイテツド Method and apparatus for locating unknown signal sources

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4782336B2 (en) * 1999-08-19 2011-09-28 インテグラル・システムズ，インコーポレイテツド Method and apparatus for locating unknown signal sources

Also Published As

Publication number Publication date
JPH0525309B2 (en) 1993-04-12

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