Single-Station Ionosphere Single-Station Ionosphere Modelling Modelling for Precise Point Positioning for Precise Point Positioning Paul Collins Paul Collins , Reza Ghoddousi-Fard, , Reza Ghoddousi-Fard, Simon Banville Fran Simon Banville Fran ç ç ois Lahaye ois Lahaye Geodetic Survey Division, Natural Resources Geodetic Survey Division, Natural Resources Canada, Ottawa, Ontario, Canada Canada, Ottawa, Ontario, Canada PPP Workshop: Reaching Full Potential June 12-14, 2013, Ottawa, Canada
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Single-Station Ionosphere Modelling for Precise Point Positioning Paul Collins, Reza Ghoddousi-Fard, Simon Banville François Lahaye Geodetic Survey Division,
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Single-Station Ionosphere Modelling Single-Station Ionosphere Modelling for Precise Point Positioningfor Precise Point Positioning
Paul CollinsPaul Collins, Reza Ghoddousi-Fard, Simon Banville , Reza Ghoddousi-Fard, Simon Banville FranFranççois Lahayeois Lahaye
PPP Workshop: Reaching Full PotentialJune 12-14, 2013, Ottawa, Canada
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IntroductionIntroduction
A clearer understanding of the role of the ionosphere in high-precision GNSS permits: rapid PPP-AR (under some circumstances), those ‘circumstances’ look suspiciously like RTK…
One goal of this presentation is to retain: a distinction between PPP & RTK techniques.
Motivation: What was the point of GPS in the first place? Why the desire for dense reference networks?
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PPP/RTK ReviewPPP/RTK Review
Two kinds of RTK: Observation Space Representation (OSR-RTK) State Space Representation (SSR-RTK)
Preferably not PPP-RTK, because…
Differentiator between RTK and PPP: Network Size:
RTK: local/regional. PPP: (wide-area)/global.
Network Dependence: RTK User: No network, no solution. PPP User: What network?