Title: Satellite Selection in Multi-GNSS Positioning
Author(s): Yahao Cheng, Johann Dambeck, Florian Holzapfel
Published in: Proceedings of the 29th International Technical Meeting of The Satellite Division of the Institute of Navigation (ION GNSS+ 2016)
September 12 - 16, 2016
Oregon Convention Center
Portland, Oregon
Pages: 140 - 151
Cite this article: Cheng, Yahao, Dambeck, Johann, Holzapfel, Florian, "Satellite Selection in Multi-GNSS Positioning," Proceedings of the 29th International Technical Meeting of The Satellite Division of the Institute of Navigation (ION GNSS+ 2016), Portland, Oregon, September 2016, pp. 140-151.
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Abstract: Satellites selection can be performed based on constellation geometry, ranging-signal quality, or both. For applications where multipath and blockage are not major problems, Signal-in-Space (SIS) user range error varies less significantly, which is the case for many applications most of the time. Constellation geometry is then the key criterion for satellite selection. This paper focusses on the constellation-geometry aspect of satellite selection. A review of existing theoretical analyses for Dilution of Precision (DOP) minimization and existing satellite selection methods is initially given. An extended analysis of existing methods and discussion of their pros and cons is then provided followed by four simulated GNSS constellations to evaluate the methods. Finally, a summary of the existing methods and one modified method regarding performance in DOP values and the corresponding computational efforts is presented.