Integration of GPS with a Rubidium Clock and a Barometer for Land Vehicle Navigation

Zhaonian Zhang

Abstract:	An integrated navigation system consisting of GPS with a rubidium clock and a barometer is developed and investigated for land vehicle navigation. In order to evaluate the performance of the integrated navigation system, a field test in an ideal environment with excellent satellite coverage and geometry was conducted. Post-mission precise satellite orbits and clock corrections were used to reduce the effects of SA. The test results have shown that the integration of GPS with a rubidium clock and a barometer provides significant improvement in the vertical accuracy. A virtual wall satellite rejection algorithm was implemented to simulate urban areas, where GPS outages occur frequently. The integrated navigation system was proven capable to navigate using three or two satellites with acceptable accuracy for vehicule navigation.
Published in:	Proceedings of the 10th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1997) September 16 - 19, 1997 Kansas City, MO
Pages:	801 - 806
Cite this article:	Zhang, Zhaonian, "Integration of GPS with a Rubidium Clock and a Barometer for Land Vehicle Navigation," Proceedings of the 10th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1997), Kansas City, MO, September 1997, pp. 801-806.
Full Paper:	ION Members/Non-Members: 1 Download Credit Sign In