The JPALS Performance Model

G. Johnson, M. Lage, J. Clark, R. Breslau, J. Aksteter, F. Allen

Abstract:	The Joint Precision Approach and Landing System (JPALS) is a Department of Defense (DoD) program to provide a satellite based precision approach for the U.S. military. The JPALS system includes both a Local Differential GPS (LDGPS) ground-based system designed to provide Cat II capability and Shipboard Relative GPS (SRGPS) ship-based system designed to provide Cat III autoland capability. The JPALS program is currently in the Research and Development (R&D) phase and ARINC is the prime contractor for both the LDGPS and SRGPS JPALS efforts. To support JPALS architecture analysis, the program is developing an integrated JPALS performance model which will support both LDGPS and SRGPS analysis. The model supports Monte Carlo analysis, failure scenario evaluation and flight test data replay. It consists of common components, LDGPS specific components and SRGPS specific components. The performance model will be completed in three phases. The first phase will develop the infrastructure and GUI but use published models. The second phase will implement jamming effects and more advanced models that represent state-of-the-art anti-jam equipment. The third phase will implement closed-loop guidance and control. All three phases will include fixed base and shipboard approach and landing operations.
Published in:	Proceedings of the 16th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS/GNSS 2003) September 9 - 12, 2003 Oregon Convention Center Portland, OR
Pages:	2288 - 2296
Cite this article:	Johnson, G., Lage, M., Clark, J., Breslau, R., Aksteter, J., Allen, F., "The JPALS Performance Model," Proceedings of the 16th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS/GNSS 2003), Portland, OR, September 2003, pp. 2288-2296.
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