Counteracting Irregularities in Offshore DGPS Positioning Due to Ionospheric Disturbance by Use of Dual Frequency

Erik Vigen

Abstract:	Differential GPS users have become used to high accuracy, but with the onset of the new solar spot cycle experienced in the autumn of 1998 this is not consistently available any longer. It is described how this can be remedied by use of commercial dual frequency GPS receivers to achieve “iono free” differential GPS performance to get back most of the accuracy lost. An example of available accuracy with dual frequency without differential corrections is also shown.
Published in:	Proceedings of the 13th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 2000) September 19 - 22, 2000 Salt Palace Convention Center Salt Lake City, UT
Pages:	1455 - 1460
Cite this article:	Vigen, Erik, "Counteracting Irregularities in Offshore DGPS Positioning Due to Ionospheric Disturbance by Use of Dual Frequency," Proceedings of the 13th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 2000), Salt Lake City, UT, September 2000, pp. 1455-1460.
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