Precise Point Positioning Using IGS Orbit and Clock Products |
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Authors: | Jan Kouba Pierre Héroux |
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Institution: | (1) Geodetic Survey Division, Geomatics Canada, Natural Resources Canada, 615 Booth Street, Room 458A, Ottawa, Ontario K1A 0E9 Canada, CA |
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Abstract: | The contribution details a post-processing approach that used undifferentiated dual-frequency pseudorange and carrier phase
observations along with IGS procise orbit products, for stand-alone precise geodetic point positioning (static or kinematic)
with cm precision. This is possible if one takes advantage of the satellite clock estimates available with the satellite coordinates
in the IGS precise orbit products and models systematic effects that cause cm variations in the satelite to user range. This
paper will describe the approach, summarize the adjustment procedure, and specify the earth- and space-based models that must
be implementetd to achieve cm-level positioning in static mode. Furthermore, station tropospheric zenth path delays with cm
precision and GPS receiver clock estimates procise to 0.1 ns are also obtained. ? 2001 John Wiley & Sons, Inc. |
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