Satellite Selection based on WDOP Concept and Convex Geometry
Satellite Selection based on WDOP Concept and Convex Geometry, Proc ESA Workshop on Satellite Navigation User Equipment Technologies (NAVITEC), Noordwijk, Netherlands, Vol. 1, pp. 1 - 8, December, 2010.
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Positioning accuracy is typically evaluated assuming that measurement errors are identically Gaussian distributed zero-mean and uncorrelated. For these conditions, Geometrical Dilution of Precision (GDOP) alone is typically used as a satellite selection criterion. However, this is an idealization that leads to suboptimal results. Under this assumption, a satellite selection mode based on convex geometry theory was proposed by the authors elsewhere. A modification of the mentioned satellite selection algorithm is proposed here, where the impact of different measurement errors is considered for the selection computation.