Fast precise point positioning: a system to provide corrections for single and multi-frequency navigation
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Fast Precise Point Positioning (Fast-PPP) provides Global Navigation Satellite System corrections in real-time. Satellite orbits and clock corrections are shown to be accurate to a few centimeters and a few tenths of a nanosecond which, together with the determination of the fractional part of the ambiguities, enable global high-accuracy positioning with undifferenced Integer Ambiguity Resolution. The new global ionospheric model is shown to provide corrections accurate at the level of 1 Total Electron Content Unit over well-sounded areas and Differential Code Biases at the level of tenths of a nanosecond. These corrections are assessed with permanent receivers, treated as rovers, located at 100 to 800 kilometers from the reference stations of the ionospheric model. Fast-PPP achieves decimeter-level of accuracy after few minutes, several times faster than single- and dual-frequency ionospheric-free solutions, using a month of Global Positioning System data close to the last Solar Maximum and including equatorial rovers.
CitationRovira-Garcia, Adrià., Juan, J., Sanz, J., Gonzalez-Casado, G., Bertran, E. Fast precise point positioning: a system to provide corrections for single and multi-frequency navigation. "Navigation (Washington)", Setembre 2016, vol. 63, núm. 3, p. 231-247.
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