PROPNASS German/Russian Concept for a European NavSat System

Å. Ingemar Skoog, Yury V. Medvedkov, Sergey G. Revnivykh

Abstract:	The next generation satellite navigation systems will most likely be operated by civil organizations, will provide a high level of service integrity and unselective availability, and will offer a new class and quality of local accuracy, to be used in future traffic management systems. Dasa/Dornier Satellitensysteme together with the Russian Space Agency (RKA), the Russian Internavigation Research and Technical Center and industrial partners in Russia and Germany have since early 1995 performed a mission definition and con-ceptual design of a system to demonstrate a future European Navigation Satellite System (ENSS) capabilities by means of a preoperational navigation satellite system, PROPNASS. In PROPNASS alternate orbital constellations for ENSS have been evaluated, appropriate radio frequency bands investigated, space bus concepts com-pared, and - very particular - a communications cap-ability been explored, which would render navigation-operational messaging possible for traffic management systems. The ENSS/PROPNASS conceptual design comprises a system of 4 - 8 satellites (ENSS 12SV) in inclined geosynchronous orbits with a combined navi-gation/ communications payload for the L/S- and L/C-band. Navigation accuracies in the 5 meters class, without any augmentation of the space segment signals, are envisaged. As for the communication, bidirectional data-transmission for traffic management functions are planned. Prototype payloads are slated to be flown in preopera-tional system trials, and pilot applications in West Europe and Russia are planned to demonstrate system performance in land, water, and air environments, together with the respective users.
Published in:	Proceedings of the 10th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1997) September 16 - 19, 1997 Kansas City, MO
Pages:	1219 - 1228
Cite this article:	Skoog, Å. Ingemar, Medvedkov, Yury V., Revnivykh, Sergey G., "PROPNASS German/Russian Concept for a European NavSat System," Proceedings of the 10th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1997), Kansas City, MO, September 1997, pp. 1219-1228.
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