Rover Processing with Network RTK and Quality Indicators

P. Alves, H. Kotthoff, I. Geisler, O. Zelzer, and H.-J. Euler

Abstract:	The multiple reference station approach is widely known as a method for combining the data from a regional reference station network to provide precise measurement correction to users. This is performed by measuring the regional errors at the reference station locations and interpolating them for the location of the rover. The quality of those corrections is dependent on the reference station spacing, the location of the rover, and the characteristics of the measurement errors. This paper introduces a network RTK quality indicator based on the characteristics of the measurement errors. The indicator assumes that the more linear the regional correlated errors, the better the interpolation methods will perform. The linearity of the network measurement errors is measured and weighted based on the distance to the rover. The quality indicator shown, successfully models the network RTK performance over time in the observation domain. There is an insignificant improvement in the position domain when fixed ambiguities are used however there is a small yet notable improvement in the percentage of fixed ambiguity solutions.
Published in:	Proceedings of the 2006 National Technical Meeting of The Institute of Navigation January 18 - 20, 2006 Hyatt Regency Hotel Monterey, CA
Pages:	881 - 889
Cite this article:	Alves, P., Kotthoff, H., Geisler, I., Zelzer, O., Euler, H.-J., "Rover Processing with Network RTK and Quality Indicators," Proceedings of the 2006 National Technical Meeting of The Institute of Navigation, Monterey, CA, January 2006, pp. 881-889.
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