Precise Point Positioning using GPS and compass observations
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The Compass Navigation Satellite system, which currently provides more than 12 satellites with three carrier signals, already satisfies the requirement of stand-alone positioning in the Asia–Pacific regional area. First an initial introduction and performance assessment of dual-frequency un-differenced precise point positioning (PPP) for GPS and Compass is presented, the results of which indicate that centimeter-level positioning accuracy of Compass-PPP is comparable to that of GPS-PPP. Then the combined GPS + Compass dual-frequency PPP model is introduced, followed by a numerical performance analysis and comparison with single GNSS-PPP. The results show that the combined GPS + Compass PPP can shorten the convergence time, but not necessarily improve positioning results by much if the satellites of the single GNSS system already have a good receiver-satellite geometry.
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Nadarajah, Nandakumaran; Teunissen, Peter; Buist, P.; Steigenberger, P. (2012)The advent of modernized and new global navigation satellite systems (GNSS) has enhanced the availability of satellite based positioning, navigation, and timing (PNT) solutions. Specifically, it increases redundancy and ...
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