Abstract

Besides from existing global navigation satellite system (GNSS), several countries such as France, Indian, Japan and China have being developing their regional navigation satellite system (RNSS) in recent years. The Inclined Geosynchronous Orbit (IGSO) satellites with a big inclination angle play an important role in these RNSS constellations. The mathematical aspects of RNSS constellations are studied in this work. Analysis shows obvious anomaly solutions happen several times in everyday positioning. Therefore redundant satellites are needed in constellation optimization design for RNSS.

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