VERIFICATION OF ACCURACY CHANGE OF GPS AND QZSS POSITIONING FOCUSING ON THE NUMBER AND ELEVATION ANGLE OF QZSS

Abstract

 This study aims to verify the change of the positioning accuracy by comparing the positioning accuracy focusing on the difference of the number of QZSS and the elevation angle of QZSS during the positioning with GPS and QZSS. Comparing the accuracy with the increase of number of QZSS, the accuracy improved. When the satellites were located at high elevation angle, the accuracy tended to be high, however the number of satellites and DOP were also greatly related to the accuracy.