Future Expantion from QZSS to Regional Satellite Navigation System

Satoshi Kogure, Motohisa Kishimoto, and Mikio Sawabe

Abstract:	Quasi-Zenith Satellite System (QZSS) is a satellite navigation constellation which Japanese government plans to launch its first demonstration satellite in 2009. According to Japanese strategy for satellite navigation system discussed by the sub-working group of Council of Science Technology Panel (CSTP), this QZSS is the first step for the future evolution to a regional satellite navigation system covering Eastern Asia and Oceania. In this paper, the concept of the future Regional Satellite Navigation System (RSNS) is introduced. There are several options which have different orbit and combination between Quasi-Zenith Satellites (QZS), Geo- Synchronous Orbit (GSO) satellites and Inclined Geo- Synchronous Orbit (IGSO) satellites with higher inclination than QZSS. These options are compared in order to estimate which option is suitable for our future evolution. The result of simulation shows that simple combination QZSS satellites and GSO satellites is the most preferable candidate in the view point of the visibility and DOP characteristics, although further feasibility studies for the total system including cost, operation and etc. are required.
Published in:	Proceedings of the 2007 National Technical Meeting of The Institute of Navigation January 22 - 24, 2007 The Catamaran Resort Hotel San Diego, CA
Pages:	455 - 460
Cite this article:	Kogure, Satoshi, Kishimoto, Motohisa, Sawabe, Mikio, "Future Expantion from QZSS to Regional Satellite Navigation System," Proceedings of the 2007 National Technical Meeting of The Institute of Navigation, San Diego, CA, January 2007, pp. 455-460.
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