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Improving Reliability and Assessing Performance of Global Navigation Satellite System Precise Point Positioning Ambiguity Resolution

Conventional Precise Point Positioning (PPP) has always required a relatively long initialization period (few tens of minutes at least) for the carrier-phase ambiguities to converge to constant values and for the solution to reach its optimal …

Reduction of PPP convergence period through pseudorange multipath and noise mitigation

Pseudorange multipath and pseudorange noise are the largest remaining unmanaged error sources in PPP. It is proposed that by reducing the effects of multipath and noise on the pseudorange observable, accurate estimates of carrier phase float …

Assessment of elevation measuring techniques for national mapping

This study assessed the vertical accuracy of measurement using different types of survey techniques namely LiDAR, Aerial Photogrammetry and Topographic Maps against the Ground Truth collected by RTK GPS. The study used the same geographical area …