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Title: Real-time point positioning performance evaluation of single-frequency receivers using NASA's global differential GPS system
Authors: Muellerschoen, Ronald J.
Iijima, Byron
Meyer, Robert
Bar-Sever, Yoaz
Accad, Elie
Keywords: internet-based global differential GPS (IGDG)
global positioning system (GPS)
Issue Date: 23-Sep-2004
Publisher: Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2004.
Citation: Ion GNSS 2004, Long Beach, California, September 20-23, 2004
Abstract: This paper evaluates the performance of a single-frequency receiver using the 1-Hz differential corrections as provided by NASA's global differential GPS system. While the dual-frequency user has the ability to eliminate the ionosphere error by taking a linear combination of observables, the single-frequency user must remove or calibrate this error by other means. To remove the ionosphere error we take advantage of the fact that the magnitude of the group delay in range observable and the carrier phase advance have the same magnitude but are opposite in sign. A way to calibrate this error is to use a real-time database of grid points computed by JPL's RTI (Real-Time Ionosphere) software. In both cases we evaluate the positional accuracy of a kinematic carrier phase based point positioning method on a global extent.
Appears in Collections:JPL TRS 1992+

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