Building an Inexpensive Time Reference System Using an OEM GPS Receiver and RT-Linux

Sergio Silva, Rui Chilro and Sergio Cunha

Abstract:	Using a GPS receiver and an Intel Pentium based computer plus a simple voltage level converter interface between the GPS’s PPS signal and the interrupt pin of the PC printer port, interesting results can be achieved regarding synchronization. This is possible using a hard real time operating system with the functionality of RTLinux. Moreover, other services can be run in the same computer with negligible performance degradation. This paper will show how it can be done and the results obtained.
Published in:	Proceedings of the 14th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 2001) September 11 - 14, 2001 Salt Palace Convention Center Salt Lake City, UT
Pages:	2234 - 2237
Cite this article:	Silva, Sergio, Chilro, Rui, Cunha, Sergio, "Building an Inexpensive Time Reference System Using an OEM GPS Receiver and RT-Linux," Proceedings of the 14th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 2001), Salt Lake City, UT, September 2001, pp. 2234-2237.
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