Next Generation GPS Ground Control Segment (OCX) Navigation Design

W. Bertiger, Y. Bar-Sever, N. Harvey, K. Miller, L. Romans, J. Weiss, L. Doyle, T. Solorzano, J. Petzinger, A. Stell

Abstract:	In February 2010, a Raytheon-led team was selected by The Air Force to develop, implement, and operate the next generation GPS ground control segment (OCX). To meet and exceed the demanding OCX navigation performance requirements, Raytheon partnered with ITT (Navigation lead) and JPL to adapt major elements of JPL's navigation technology, proven in the operations of the Global Differential GPS (GDGPS) System. Key design goals for the navigation subsystem include accurate ephemeris (expressed primarily in terms of user range error, or URE), ease of model upgrades, and a smooth and safe transition from the legacy system to OCX. We will describe key elements of the innovative architecture of the OCX navigation subsystem, and demonstrate the anticipated performance of the system through high fidelity simulations with actual GPS measurements.
Published in:	Proceedings of the 23rd International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2010) September 21 - 24, 2010 Oregon Convention Center, Portland, Oregon Portland, OR
Pages:	964 - 977
Cite this article:	Bertiger, W., Bar-Sever, Y., Harvey, N., Miller, K., Romans, L., Weiss, J., Doyle, L., Solorzano, T., Petzinger, J., Stell, A., "Next Generation GPS Ground Control Segment (OCX) Navigation Design," Proceedings of the 23rd International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2010), Portland, OR, September 2010, pp. 964-977.
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