System Aspects and Practical Results for Precise Car Navigation with Modern Civil Signals using a Software Receiver

Daniel Sanromà Güixens, Dominik Dötterböck, Thomas Pany, Bernd Eissfeller

Abstract:	In the past few years car navigation using GPS receivers experienced a boom, making navigation equipment affordable for everybody. These low cost single frequency receivers provide an acceptable accuracy of several meters due to map matching algorithms. However, in some situations (crossings, lane changes) a correct navigational direction demands an accuracy of 0.5-1 meter. The use of a single frequency L1 C/A receiver for navigation could be critical for these specifications since not enough errors can be mitigated. With the application of a dual frequency receiver, capable of processing the civil frequencies L1 C/A and L2 CS, these requirements can be obtained without map matching or additional navigation sensors. In the first part this paper shows the results of a practical implementation of precise car navigation (<1m) using a L1/L2C GPS software receiver approach. The performance analysis of the receiver implementation and the resulting practical experiences from several test campaigns will be presented. In the second part results and experiences from car navigation with GATE E1 BOC (1,1) signals will be presented
Published in:	Proceedings of the 21st International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2008) September 16 - 19, 2008 Savannah International Convention Center Savannah, GA
Pages:	2280 - 2292
Cite this article:	Güixens, Daniel Sanromà, Dötterböck, Dominik, Pany, Thomas, Eissfeller, Bernd, "System Aspects and Practical Results for Precise Car Navigation with Modern Civil Signals using a Software Receiver," Proceedings of the 21st International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2008), Savannah, GA, September 2008, pp. 2280-2292.
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