AU2013206529B2 - Distributed orbit modeling and propagation method for a predicted and real-time assisted gps system - Google Patents

Distributed orbit modeling and propagation method for a predicted and real-time assisted gps system

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Publication number
AU2013206529B2
AU2013206529B2 AU2013206529A AU2013206529A AU2013206529B2 AU 2013206529 B2 AU2013206529 B2 AU 2013206529B2 AU 2013206529 A AU2013206529 A AU 2013206529A AU 2013206529 A AU2013206529 A AU 2013206529A AU 2013206529 B2 AU2013206529 B2 AU 2013206529B2
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Australia
Prior art keywords
predicted
gps
client
server
pgps
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AU2013206529A
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AU2013206529C1 (en
AU2013206529A1 (en
Inventor
Maria Eagen
James W. Lamance
Guylain Roy-Machabee
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RX Networks Inc
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RX Networks Inc
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Publication date
Priority claimed from AU2007361686A external-priority patent/AU2007361686B2/en
Application filed by RX Networks Inc filed Critical RX Networks Inc
Priority to AU2013206529A priority Critical patent/AU2013206529C1/en
Publication of AU2013206529A1 publication Critical patent/AU2013206529A1/en
Publication of AU2013206529B2 publication Critical patent/AU2013206529B2/en
Application granted granted Critical
Publication of AU2013206529C1 publication Critical patent/AU2013206529C1/en
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Abstract

Abstract A distributed orbit and propagation method for use in a predicted GPS or GNSS system, which includes a predicted GPS server (PGPS Server), a source of high accuracy orbit predictions (Orbit Server), a global reference network (GRN Server) providing real-time GPS or GNSS assistance data to the PGPS Server, a predicted GPS client (PGPS Client) running on a device equipped with a GPS or AGPS chipset. In response to requests from the PGPS Client, the PGPS Server produces and disseminates an initial seed dataset consisting of current satellite orbit state vectors and orbit propagation model coefficients. This seed dataset enables the PGPS Client to locally predict and propagate satellite orbits to a desired future time. This predictive assistance in turn helps accelerate Time To First Fix (TTFF), optimize position solution calculations and improve the sensitivity of the GPS chip present on, or coupled with, the device. In contrast with other conventional predicted GPS systems that forward large volumes of predicted orbits, synthetic ephemeris or synthetic almanac data, this method optimally reduces data transfer requirements to the client, and enables the client to locally synthesize its own predicted assistance data as needed. This method also supports seamless notification of real-time satellite integrity events and seamless integration of predicted assistance data with industry standard real time assistance data.
AU2013206529A 2007-11-19 2013-06-25 Distributed orbit modeling and propagation method for a predicted and real-time assisted gps system Active AU2013206529C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2013206529A AU2013206529C1 (en) 2007-11-19 2013-06-25 Distributed orbit modeling and propagation method for a predicted and real-time assisted gps system

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AU2007361686 2007-11-19
AU2007361686A AU2007361686B2 (en) 2007-11-19 Distributed orbit modeling and propagation method for a predicted and real-time assisted GPS system
AU2013206529A AU2013206529C1 (en) 2007-11-19 2013-06-25 Distributed orbit modeling and propagation method for a predicted and real-time assisted gps system

Related Parent Applications (1)

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AU2007361686A Division AU2007361686B2 (en) 2007-11-19 2007-11-19 Distributed orbit modeling and propagation method for a predicted and real-time assisted GPS system

Publications (3)

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AU2013206529A1 AU2013206529A1 (en) 2013-07-11
AU2013206529B2 true AU2013206529B2 (en) 2016-07-21
AU2013206529C1 AU2013206529C1 (en) 2016-11-10

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AU (1) AU2013206529C1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5504492A (en) * 1994-08-01 1996-04-02 Honeywell Inc. Look ahead satellite positioning system position error bound monitoring system
US6133872A (en) * 1997-10-17 2000-10-17 Ball Aerospace & Technologies Corp. Real time precision orbit determination system
US6542820B2 (en) * 2001-06-06 2003-04-01 Global Locate, Inc. Method and apparatus for generating and distributing satellite tracking information
US6903684B1 (en) * 2002-10-22 2005-06-07 Qualcomm Incorporated Method and apparatus for optimizing GPS-based position location in presence of time varying frequency error

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5504492A (en) * 1994-08-01 1996-04-02 Honeywell Inc. Look ahead satellite positioning system position error bound monitoring system
US6133872A (en) * 1997-10-17 2000-10-17 Ball Aerospace & Technologies Corp. Real time precision orbit determination system
US6542820B2 (en) * 2001-06-06 2003-04-01 Global Locate, Inc. Method and apparatus for generating and distributing satellite tracking information
US6903684B1 (en) * 2002-10-22 2005-06-07 Qualcomm Incorporated Method and apparatus for optimizing GPS-based position location in presence of time varying frequency error

Also Published As

Publication number Publication date
AU2013206529C1 (en) 2016-11-10
AU2013206529A1 (en) 2013-07-11

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