“Assessment of the Accuracy and Convergence Period of Precise Point Positioning"
Alexandria Engineering Journal (2017) • 2017
Publication Information
Authors
Mohammed Abou-Galala, Mostafa Rabah, Mosbeh Kaloop1and Zaki M. Zeidan
Keywords
precise point positioning, PPP accuracy, convergence period, geodetic control surveying
Journal
Alexandria Engineering Journal (2017)
Publisher
Not Available
Volume
Not Available
Issue
Not Available
Pages
Not Available
publication.type
International
Paper Link
Open Link
Supplementary Materials
Not Available
Abstract
Precise Point Positioning (PPP) is a well-known positioning method that removes, models, or estimates GNSS system errors to reach the optimal position accuracy from a single receiver. The accuracy of static PPP was tested for 523 daily observation files from 75 IGS globally distributed stations observed at the period from DOY 49 to 55 in 2012. Also, the convergence period was examined to reach different levels of the horizontal accuracy to serve two applications: precision agriculture and geodetic control surveying. The accuracy of static PPP was 4, 5 and 9 mm in the north, east and vertical components, respectively. Static PPP needs 60 minutes to reach five-centimeter horizontal accuracy at the 95% confidence level and 24 hours to achieve one-centimeter horizontal accuracy at the 95% confidence level.
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