Track Irregularity Measurement using an INS - GPS

Thorsten Luck, Erwin Lohnert, Bernd Eissfeller

Abstract:	The knowledge of geometric trac irregular- ities which are dangerous to dynamic safety (DYSAF)of railways becomes evident with ris- ing use of tilting trains like the German ICE3 or ICT,as irregularities may lead to train derail- ment.To identify trac defects,a new measur- ing technique using di ?erential GPS and an in- ertial navigation system to determine the posi- tion of the trac measuring system is presented. The paper discusses the system design and in- tegration technique and presents experimental results from the laboratory test vehicle.Also critical aspects of high-precision DGPS/INS in- tegration are outlined.
Published in:	Proceedings of the 12th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1999) September 14 - 17, 1999 Nashville, TN
Pages:	71 - 78
Cite this article:	Luck, Thorsten, Lohnert, Erwin, Eissfeller, Bernd, "Track Irregularity Measurement using an INS - GPS," Proceedings of the 12th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1999), Nashville, TN, September 1999, pp. 71-78.
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