Development of Real-Time PPP-Based GPS/INS Integration System Using IGS Real-Time Service for Hydrographic Surveys
Publication: Journal of Surveying Engineering
Volume 142, Issue 2
Abstract
The multibeam echosounding technique is used to provide seafloor mapping at a relatively high-quality level and requires an accurate positioning and orientation system. Integration of a global positioning system (GPS) and an inertial navigation system (INS) is widely used for positioning and orientation control and is performed by using an inertial unit integrated with a real-time kinematic (RTK) GPS solution with two GPS receivers to provide the required accuracy. However, the RTK-based GPS/INS system is presently limited to a distance of approximately 10 km and cannot be used for offshore hydrographic surveys. Recently, precise-point positioning (PPP) technology has shown promise toward the development of an autonomous GPS solution for positioning applications in which only one GPS receiver is used. This paper investigates a real-time PPP-based GPS/INS integrated system position and orientation solution using the international GPS service (IGS) real-time service (RTS) for hydrographic surveys. To meet this objective, the real-time IGS-RTS PPP-based GPS solution is integrated with the INS solution. It is shown that the real-time IGS-RTS PPP-based GPS/INS integration system fulfills International Hydrographic Organization (IHO) special-order 1a, 1b, and 2 requirements at the 95% confidence level and can be used for onshore and offshore hydrographic surveys.
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Acknowledgments
The author acknowledges the CHS for providing the kinematic test data of the POS-MV system. He also thanks the Geodetic Survey Department of NRCan for kindly providing the CSRS-PPP software package. This work was funded by the Deanship of Scientific Research (DSR), King Abdulaziz University, Jeddah, under Grant 150-006-D1434; therefore, the author thanks the DSR for technical and financial support.
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Information & Authors
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Published In
Journal of Surveying Engineering
Volume 142 • Issue 2 • May 2016
Copyright
© 2015 American Society of Civil Engineers.
History
Received: Oct 27, 2014
Accepted: Jul 10, 2015
Published online: Dec 30, 2015
Published in print: May 1, 2016
Discussion open until: May 30, 2016
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