Precise Point Positioning in GNSS with use of pseudophase measurements ambiguity resolution

Navigation systems


Podkorytov A. N.

Moscow Aviation Institute (National Research University), 4, Volokolamskoe shosse, Moscow, А-80, GSP-3, 125993, Russia



The use of pseudophase measurements ambiguity resolution procedure for Precise point positioning (PPP) in Global navigation satellite systems (GNSS) is considered in the article. Specific conditions for implementation of ambiguity resolution procedure in absolute mode of point positioning have been determined. Results for PPP tests using ambiguity resolution of pseudophase measurements (Integer PPP mode) compared with PPP tests without one (Float PPP mode) are shown in the article. There are considerable improvement in accuracy of positioning and essential reducing of convergence period for Integer PPP mode. Necessary products of network solution from Natural Resources Canada (Geodetic Survey Division, Earth Sciences Sector) were used.


GNSS, PPP, Integer PPP, pseudophase measurements, ambiguity resolution, integer ambiguity

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