Abstract
Survey using GPS has been spreading in the world including Japan. Japanese government launched QZS (Quasi-Zenith Satellite) which is the first satellite of QZSS (Quasi-Zenith Satellite System) for the purpose to improve of GPS weak point. It can stay over Japan for 8 hours and keep the high zenith angle. Moreover, it is possible to obtain location information of high accuracy by support signal transmitted from QZS which is LEX signal. The purpose of the research is to conduct the demonstrated experiment which uses the LEX signal from QZS in Hokuriku area of Japan, and it was compared with accuracy for absolute positioning between VRS-GPS and QZSS.
