NASA NTRS · 20150008551
Next Generation GPS Ground Control Segment (OCX) Navigation Design
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, the Raytheon team 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 and clock accuracy (user range error), 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 withactual GPS measurements.
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Bertiger, Willy, Bar-Sever, Yoaz, Harvey, Nate, Miller, Kevin, Romans, Larry, Weiss, Jan, Doyle, Larry, Solorzano, Tara, Petzinger, John, Stell, Al. 2010-09-21. Next Generation GPS Ground Control Segment (OCX) Navigation Design. https://ntrs.nasa.gov/citations/20150008551
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