EVALUATION OF THE HIGH ACCURACY POSITIONING BY QUASI-ZENITH SATELLITE

The positional information has an important role in our life-style. People need to get positional information by GNSS. Japanese government launched QZS (Quasi-Zenith Satellite) which is the first satellite of QZSS (Quasi-Zenith Satellite System) in 2010. Four QZS satellites are planning to be arranged by 2018. QZSS 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