JPS51145292A - Location finding system - Google Patents

Location finding system

Info

Publication number
JPS51145292A
JPS51145292A JP50069300A JP6930075A JPS51145292A JP S51145292 A JPS51145292 A JP S51145292A JP 50069300 A JP50069300 A JP 50069300A JP 6930075 A JP6930075 A JP 6930075A JP S51145292 A JPS51145292 A JP S51145292A
Authority
JP
Japan
Prior art keywords
location finding
finding system
location
mobil
economically
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
JP50069300A
Other languages
Japanese (ja)
Inventor
Hideo Morita
Takashi Miyamoto
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
Nippon 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP50069300A priority Critical patent/JPS51145292A/en
Publication of JPS51145292A publication Critical patent/JPS51145292A/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
    • G01S5/0246—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 involving frequency difference of arrival or Doppler measurements

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)

Abstract

PURPOSE:Possible to carry out with accuracy and economically the location finding of mobil object with simple method.
JP50069300A 1975-06-09 1975-06-09 Location finding system Pending JPS51145292A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50069300A JPS51145292A (en) 1975-06-09 1975-06-09 Location finding system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50069300A JPS51145292A (en) 1975-06-09 1975-06-09 Location finding system

Publications (1)

Publication Number Publication Date
JPS51145292A true JPS51145292A (en) 1976-12-14

Family

ID=13398569

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50069300A Pending JPS51145292A (en) 1975-06-09 1975-06-09 Location finding system

Country Status (1)

Country Link
JP (1) JPS51145292A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH049783A (en) * 1990-04-27 1992-01-14 Nec Corp Radio wave detection device
JPH0537770U (en) * 1991-10-25 1993-05-21 宇部興産株式会社 Pneumatic transport device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH049783A (en) * 1990-04-27 1992-01-14 Nec Corp Radio wave detection device
JPH0537770U (en) * 1991-10-25 1993-05-21 宇部興産株式会社 Pneumatic transport device

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