EP1949126A4 - Method and apparatus for reconstructing time of transit from assisted or weak signal gps observations - Google Patents

Method and apparatus for reconstructing time of transit from assisted or weak signal gps observations

Info

Publication number
EP1949126A4
EP1949126A4 EP06788960A EP06788960A EP1949126A4 EP 1949126 A4 EP1949126 A4 EP 1949126A4 EP 06788960 A EP06788960 A EP 06788960A EP 06788960 A EP06788960 A EP 06788960A EP 1949126 A4 EP1949126 A4 EP 1949126A4
Authority
EP
European Patent Office
Prior art keywords
transit
assisted
weak signal
signal gps
gps observations
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.)
Withdrawn
Application number
EP06788960A
Other languages
German (de)
French (fr)
Other versions
EP1949126A2 (en
Inventor
Eamonn Glennon
Roderick Bryant
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.)
SigNav Pty Ltd
Original Assignee
SigNav Pty 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 SigNav Pty Ltd filed Critical SigNav Pty Ltd
Priority claimed from US11/460,784 external-priority patent/US20070024500A1/en
Publication of EP1949126A2 publication Critical patent/EP1949126A2/en
Publication of EP1949126A4 publication Critical patent/EP1949126A4/en
Withdrawn legal-status Critical Current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
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/13—Receivers
    • G01S19/24—Acquisition or tracking or demodulation of signals transmitted by the system
    • G01S19/25—Acquisition or tracking or demodulation of signals transmitted by the system involving aiding data received from a cooperating element, e.g. assisted GPS
    • G01S19/256—Acquisition or tracking or demodulation of signals transmitted by the system involving aiding data received from a cooperating element, e.g. assisted GPS relating to timing, e.g. time of week, code phase, timing offset

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)
EP06788960A 2005-07-29 2006-07-28 Method and apparatus for reconstructing time of transit from assisted or weak signal gps observations Withdrawn EP1949126A4 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US70363705P 2005-07-29 2005-07-29
PCT/US2006/029702 WO2007016474A2 (en) 2005-07-29 2006-07-28 Method and apparatus for reconstructing time of transit from assisted or weak signal gps observations
US11/460,784 US20070024500A1 (en) 2005-07-29 2006-07-28 Method and apparatus for reconstructing time of transmit from assisted or weak signal gps observations

Publications (2)

Publication Number Publication Date
EP1949126A2 EP1949126A2 (en) 2008-07-30
EP1949126A4 true EP1949126A4 (en) 2010-09-29

Family

ID=37709274

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06788960A Withdrawn EP1949126A4 (en) 2005-07-29 2006-07-28 Method and apparatus for reconstructing time of transit from assisted or weak signal gps observations

Country Status (3)

Country Link
EP (1) EP1949126A4 (en)
CA (1) CA2617142A1 (en)
WO (1) WO2007016474A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8190536B2 (en) 2008-09-10 2012-05-29 King Fahd University Of Petroleum & Minerals Method of performing parallel search optimization

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6072428A (en) * 1998-06-03 2000-06-06 Trimble Navigation Limited Location determination using doppler and pseudorange measurements from fewer than four satellites
US6215442B1 (en) * 1997-02-03 2001-04-10 Snaptrack, Inc. Method and apparatus for determining time in a satellite positioning system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6411899B2 (en) * 1996-10-24 2002-06-25 Trimble Navigation Ltd. Position based personal digital assistant
US6633621B1 (en) * 2000-03-20 2003-10-14 Motorola, Inc. Apparatus and method for synchronizing a clock using a phase-locked loop circuit
US6658048B1 (en) * 2000-04-07 2003-12-02 Nokia Mobile Phones, Ltd. Global positioning system code phase detector with multipath compensation and method for reducing multipath components associated with a received signal

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6215442B1 (en) * 1997-02-03 2001-04-10 Snaptrack, Inc. Method and apparatus for determining time in a satellite positioning system
US6072428A (en) * 1998-06-03 2000-06-06 Trimble Navigation Limited Location determination using doppler and pseudorange measurements from fewer than four satellites

Also Published As

Publication number Publication date
WO2007016474A2 (en) 2007-02-08
WO2007016474A9 (en) 2007-04-19
WO2007016474A3 (en) 2007-06-07
CA2617142A1 (en) 2007-02-08
EP1949126A2 (en) 2008-07-30

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20080528

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

A4 Supplementary search report drawn up and despatched

Effective date: 20100826

RIC1 Information provided on ipc code assigned before grant

Ipc: G01S 19/42 20100101ALI20100820BHEP

Ipc: G01S 5/14 20060101AFI20070413BHEP

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20100803