Near Real-Time Coordinate Estimation from Double-Difference GNSS Data - A Case Study for the National Multi-Hazard Early Warning System in the Sultanate of Oman

Arnold, Daniel; Lutz, Simon; Dach, Rolf; Jäggi, Adrian; Steinborn, J. (2016). Near Real-Time Coordinate Estimation from Double-Difference GNSS Data - A Case Study for the National Multi-Hazard Early Warning System in the Sultanate of Oman. In: Rizos, Chris; Willis, Pascal (eds.) IAG 150 Years. Proceedings of the IAG Scientific Assembly in Postdam, Germany, 2013. International Association of Geodesy Symposia: Vol. 143 (pp. 691-697). Cham: Springer 10.1007/1345_2015_173

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Real-time and near real-time coordinate estimation become increasingly important in many applications like, e.g., environmental hazard monitoring. The typical approach is based on a Precise Point Positioning (PPP), which has the advantage that all stations can be processed independently and, therefore, the processing of monitoring networks with a large number of stations becomes efficient due to parallelization. However, a PPP requires external satellite clock corrections and the accuracy of the obtained coordinates strongly depends on the consistent usage of these clock corrections and on their quality. Since the processing time for real-time products is strictly limited, it is clear that, in general, the quality of such clock corrections is degraded w.r.t. post-processed products.The purpose of this article is to demonstrate that the classical double-difference network approach, where no accurate satellite clock corrections are needed, has a lot of potential also for near real-time applications, when a latency of a few minutes is acceptable. The presented results were obtained in the framework of the establishment of a National Multi-Hazard Early Warning System in the Sultanate of Oman.

Item Type:

Book Section (Book Chapter)

Division/Institute:

08 Faculty of Science > Institute of Astronomy

UniBE Contributor:

Arnold, Daniel; Lutz, Simon; Dach, Rolf and Jäggi, Adrian

Subjects:

500 Science > 520 Astronomy

ISBN:

0939-9585

Series:

International Association of Geodesy Symposia

Publisher:

Springer

Language:

English

Submitter:

Pierre Fridez

Date Deposited:

31 May 2017 16:39

Last Modified:

07 Jun 2017 16:37

Publisher DOI:

10.1007/1345_2015_173

BORIS DOI:

10.7892/boris.97736

URI:

https://boris.unibe.ch/id/eprint/97736

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