Abstract
Positioning accuracy of the centimeter level is expected by PPP (Precise Point Positioning) using LEX signals from QZS (Quasi Zenith Satellite). This satellite system has the orbit to stay for a long time above Japan so that the system enable to expand the areas and time duration of the positioning service provision in mountainous and urban area in Japan. This study examined the positioning accuracy of PPP using the LEX signal shielded in different environments at campus as a virtual urban area. And post-processing PPP using MADOCA (multi-GNSS Advanced Demonstration tool for Orbit/Clock Analysis) was conducted. As a result, it was confirmed that positioning accuracy has been affect by the shielded environment.
