ON THE EVALUATION OF GNSS COMPLEMENTARY BY USING QUASIZENITH SATELLITE OF JAPAN
- 1Dep. of Civil and Environmental Engineering, Kanazawa Institute of Technology, 7-1 Ohgigaoka Nonoichi City ,921-8501 Japan
- 2East Japan Railway Company, 2-2-2,Yoyogi,Shibuyaku,Tokyo Japan
Keywords: GNSS, QZS, GNSS Complementary, GNSS Augmentation
Abstract. The positional information has an important role in our lifestyle. People need to get positional information by GNSS. The satellite positioning must receive a signal from four or more satellites, however, most of Japanese country is covered with mountain and urban area has a lot of tall buildings. Then Japanese government launched QZS (Quasi Zenith Satellite) which is the first satellite of QZSS (Quasi Zenith Satellite System) in 2010. QZSS including QZS can improve positioning accuracy and reliability. QZS has 6 signals by using four kinds of frequency. These signals are the same frequency of GPS and GLONASS and so on. This paper was reported about the comparison of the positioning between GPS and QZSS.