The future of single-frequency integer ambiguity resolution

Conference paper (2009)
Department
Space Engineering (Aerospace Engineering) (TU Delft)
Copyright: ©2012 Verhagen, S., Teunissen, P.J.G., Odijk, D., Springer-Verlag
DOI: https://doi.org/doi:10.1007/978-3-642-22078-4_5
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Published Date

30-06-2009

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Source:

VII Hotine-Marussi symposium on mathematical geodesy, Rome 6-10 June, 2009 International Association of Geodesy Symposia, vol.137

Faculty

Aerospace Engineering

Department

Space Engineering

Abstract

The coming decade will bring a proliferation of Global Navigation Satellite Systems (GNSSs) that are likely to enable a much wider range of demanding applications compared to the current GPS-only situation. One such important area of application is single-frequency real-time kinematic (RTK) positioning. Presently, however, such systems lack real-time performance. In this contribution we analyze the ambiguity resolution performance of the single-frequency RTK model for different next generation GNSS configurations and positioning scenarios. For this purpose, a closed form expression of the single-frequency Ambiguity Dilution of Precision (ADOP) is derived. This form gives a clear insight into how and to what extent the various factors of the underlying model contribute to the overall performance. Analytical and simulation results will be presented for different measurement sce arios. The results indicate that low-cost, single-frequency GalileoCGPS RTK will become a serious competitor to its more expensive dual-frequency cousin.