First Results from Virtual Reference Station (VRS) and Precise Point Positioning (PPP) GPS Research at the Western Australian Centre for Geodesy
MetadataShow full item record
Over the past 18 months, a team in the Western Australian Centre for Geodesy at Curtin University of Technology, Perth, has been researching the optimum configurations to achieve long-range and precise GPS-based aircraft positioning for subsequent airborne mapping projects. Three parallel strategies have been adopted to solve this problem: virtual reference stations (VRS), precise point positioning (PPP), and multiple reference stations (MRS). This paper briefly summarises the concepts behind the PPP and VRS techniques, describes the development and testing of in-house software, and presents the latest experimental results of our research. Current comparisons of the PPP and VRS techniques with an independently well-controlled aircraft trajectory and ground-based stations in Norway show that each deliver precisions of around 3 cm. However, the implementation of more sophisticated error modelling strategies in the MRS approach is expected to better deliver our project’s objectives.
Showing items related by title, author, creator and subject.
El-Mowafy, Ahmed (2009)A method for postmission relative positioning by global positioning system based on precise point positioning is presented as an alternative to the traditional double-differencing single-baseline approach. In this method, ...
Array-aided single-frequency state-space RTK with combined GPS, Galileo, IRNSS, and QZSS L5/E5a observationsLi, Wei; Nadarajah, Nandakumaran; Teunissen, Peter; Khodabandeh, Amir; Chai, Y. (2017)© 2017 American Society of Civil Engineers. The concept of real-time kinematic precise point positioning (PPP-RTK) is to achieve integer ambiguity resolution (IAR) at a single global navigation satellite system (GNSS) ...
El-Mowafy, Ahmed (2011)The Global Positioning System (GPS) is widely used for positioning in the airborne mode, such as in navigation as a supplementary system and for geo-referencing of cameras in mapping and surveillance by aircrafts and ...