STUDY ON THE SATELLITE SELECTING METHOD OF HIGH PRECISION SATELLITE POSITIONING BY GPS/QZS COMBINED WITH GALILEO

Abstract

 Initial Galileo service was launched in 2016, and the convenience of using Galileo is increasing in Japan, so it is expected that Galileo will be used in combination with GPS and QZSS in the future. This study was conducted to inspect the effects of positioning performance kinematic positioning in case GPS/QZSS and Galileo are used together by setting signal strength as a threshold value and selecting satellites to be used for positioning as a study of how to use Galileo. With signal strength mask setting, it was concern that number of sattellites would be insufficient with GPS and QZS alone, but with Galileo was used together, signal strength mask setting had a sufficient effect on the Fix rate.