Multi-Sensor Navigation and Attitude Determination System for Space Applications

M. Mittnacht, W. Fichter, E. Gottzein, M. Hartrampf, A. Konrad, P. A. Krauss, W. Oesterlin and P. Ruhland

Abstract:	In the recent years numerous spaceborne GPS receivers have been developed all over the world. The area of applications is growing constantly. GPS signals have been explored in different types of orbits, i.e. in Low Earth Orbits (LEO), Highly Elliptical Orbits (HEO) and even in geostationary Orbit (GEO) [3]. The MosaicAODS (Attitude and Orbit Determination System) is a next step in the hierarchy of the avionics of a satellite from a single sensor to an Integrated Control and Data Handling System (ICDS) as shown in Figure 1. The MosaicAODS is based on the MosaicGNSS receiver [2] and complemented by star sensors and optional gyros. Therefore, the MosaicAODS makes the full state information continuously available. It can be used as integral part of a spacecraft ICDS/AOCS (Attitude and Orbit Control System) or as a stand-alone unit. The set-up of the real-time closed loop test comprises the MosaicAODS, a simulation computer, which calculates the orbit and attitude of the user satellite, a 12 channel GPS RF simulator unit as well as a star tracker head and pre-processing simulator. The system architecture (hardware and software) of the MosaicAODS, the real-time closed loop test environment and the obtained test results will be described in detail.
Published in:	Proceedings of the 15th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 2002) September 24 - 27, 2002 Oregon Convention Center Portland, OR
Pages:	103 - 110
Cite this article:	Mittnacht, M., Fichter, W., Gottzein, E., Hartrampf, M., Konrad, A., Krauss, P. A., Oesterlin, W., Ruhland, P., "Multi-Sensor Navigation and Attitude Determination System for Space Applications," Proceedings of the 15th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 2002), Portland, OR, September 2002, pp. 103-110.
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