Positioning Accuracy of the Airborne Integrated Mapping System

Dorota A. Grejner-Brzezinska, Bishnu P. Phuyal

Abstract:	The Center for Mapping at The Ohio State University has developed a GSP/INS integrated positioning system to support image data collection for the Airborne Integrated Mapping System (AIMS). Position and orientation of an aerial platform are acquired with accuracy estimated at the level of 4-7 centimeters and below 10 arcsec, respectively, over long baselines, which should eliminate the need for ground control, and allow for extracting feature coordinates from digital imagery at decimeter-level accuraCy. The imaging component of AIMS is based on the high-resolution Charge-Coupled Device (CCD), a solid-state image sensor. A tightly integrated differential Global Positioning System and high-accuracy Inertial Navigation System (GPS/INS) provide orientation and position of an aerial platform. The system has been tested against results provided by an independent aerotriangulation solution, in order to assess the suitability of the positioning component to support georeferemzd image collection without ground control. In this paper the accuracy analysis is presented together with discussion of the atmospheric and orbital errors and their influence on the positioning results.
Published in:	Proceedings of the 1998 National Technical Meeting of The Institute of Navigation January 21 - 23, 1998 Westin Long Beach Hotel Long Beach, CA
Pages:	713 - 721
Cite this article:	Grejner-Brzezinska, Dorota A., Phuyal, Bishnu P., "Positioning Accuracy of the Airborne Integrated Mapping System," Proceedings of the 1998 National Technical Meeting of The Institute of Navigation, Long Beach, CA, January 1998, pp. 713-721.
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