NO20060770L - Mottaker, frekvensdeviasjonsmaleenhet og posisjonerings- og rekkeviddesystem - Google Patents

Mottaker, frekvensdeviasjonsmaleenhet og posisjonerings- og rekkeviddesystem

Info

Publication number
NO20060770L
NO20060770L NO20060770A NO20060770A NO20060770L NO 20060770 L NO20060770 L NO 20060770L NO 20060770 A NO20060770 A NO 20060770A NO 20060770 A NO20060770 A NO 20060770A NO 20060770 L NO20060770 L NO 20060770L
Authority
NO
Norway
Prior art keywords
signal
positioning
time difference
receiver
frequency deviation
Prior art date
Application number
NO20060770A
Other languages
English (en)
Inventor
Tatsuo Nakagawa
Masayuki Miyazaki
Kenichi Mizugaki
Ryosuke Fujiwara
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Publication of NO20060770L publication Critical patent/NO20060770L/no

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • 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
    • G01S5/06—Position of source determined by co-ordinating a plurality of position lines defined by path-difference measurements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/0635—Clock or time synchronisation in a network
    • H04J3/0682—Clock or time synchronisation in a network by delay compensation, e.g. by compensation of propagation delay or variations thereof, by ranging

Abstract

I et system for måling av tidsdifferansen for ankomst av signaler for posisjonering, blir en nøyaktig tidsdifferanse målt av en mottager som har redusert effektforbruk, størrelse og kostnad. Systemet innbefatter et knutepunkt (under måling) for sending av et posisjoneringssignal, en referansestasjon for sending av et referansesignal og en flerfoldighet av aksesspunkter for mottak av posisjoneringssignalet og referansesignalet og en tjener tilkoblet til flerfoldigheten av aksesspunkter gjennom et nettverk. Hver av flerfoldigheten av aksesspunkter måler tidsdifferansen mellom mottak av posisjoneringssignalet og mottak av referansesignalet og frekvensdeviasjonen fra referansestasjonen ved å benytte et klokkesignal og et signal for skifting av klokkesignalet og tjeneren kalkulerer posisjonen til knutepunktet basert på den målte tidsdifferansen og frekvensdeviasjonen.
NO20060770A 2005-09-09 2006-02-17 Mottaker, frekvensdeviasjonsmaleenhet og posisjonerings- og rekkeviddesystem NO20060770L (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005261852A JP4829571B2 (ja) 2005-09-09 2005-09-09 受信装置および測位測距システム

Publications (1)

Publication Number Publication Date
NO20060770L true NO20060770L (no) 2007-03-12

Family

ID=35954087

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20060770A NO20060770L (no) 2005-09-09 2006-02-17 Mottaker, frekvensdeviasjonsmaleenhet og posisjonerings- og rekkeviddesystem

Country Status (5)

Country Link
US (2) US7881684B2 (no)
EP (1) EP1763164B1 (no)
JP (1) JP4829571B2 (no)
KR (1) KR101116218B1 (no)
NO (1) NO20060770L (no)

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Also Published As

Publication number Publication date
JP2007071819A (ja) 2007-03-22
US7881684B2 (en) 2011-02-01
US20110092223A1 (en) 2011-04-21
EP1763164B1 (en) 2012-04-18
JP4829571B2 (ja) 2011-12-07
US20070060079A1 (en) 2007-03-15
US8073465B2 (en) 2011-12-06
KR101116218B1 (ko) 2012-03-06
EP1763164A1 (en) 2007-03-14
KR20070029543A (ko) 2007-03-14

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