Integrated DGPS/Inertial TSPI for DOD Ranges: RAJPO Equipment Test Results

Sultan Mahmood, Charles Simpson

Abstract:	The RAJPO at Eglin AFB has acquired a family of GPS based equipment to determine Time Space Position Information (TSPI) for the DOD test and training ranges. The High Dynamics Instrumentation System (HDIS), produced by Interstate Electronics Corporation (IEC), is a P-code receiver that can operate in a real-time differential mode with inertial reference unit (IRU) aiding. Recently, the Government conducted extensive flight tests with the F-15 and F-16 aircraft to demonstrate the accuracy specification compliance of the receiver under various dynamic scenarios. The receiver was evaluated under conditions of sustained high G’s (up to 8) and intermittent satellite visibility. Integrated differential GPS and IRU solutions were compared against the truth source involving a number of cinetheodolites, laser trackers, and the aircraft INS. This paper briefly describes the design features of the HDIS and the implementation of real-time differential corrections by using a data link. Next, the details of the test program covering the layout of the truth data sources, test scenario design, and the test data reduction methodology are discussed. Finally, the actual real-time test data statistics are presented showing the successful compliance with the required specifications.
Published in:	Proceedings of the 1993 National Technical Meeting of The Institute of Navigation January 20 - 22, 1993 Parc 55 Hotel San Francisco, CA
Pages:	61 - 67
Cite this article:	Mahmood, Sultan, Simpson, Charles, "Integrated DGPS/Inertial TSPI for DOD Ranges: RAJPO Equipment Test Results," Proceedings of the 1993 National Technical Meeting of The Institute of Navigation, San Francisco, CA, January 1993, pp. 61-67.
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