Investigation about Availability of Satellite Positioning to Realize Automated Driving Systems

Abstract

Recently, new satellite positioning methods with multi-GNSS or Quasi-Zenith Satellite System (QZSS) are becoming available. In this survey, we installed several GNSS devices in a measurement vehicle, conducted experiments and evaluated the performance of each satellite positioning method. In addition, the tasks for using satellite positioning in automated driving systems were summarized. From this survey, it was confirmed that the new satellite positioning method makes driving lane recognition possible with no other positioning sensors. However, it has also been shown that there are some restrictions, such as satellite signals shielded by buildings or slopes. To utilize the map information, it is necessary to acquire the position obtained by satellite positioning, and the next step will be to effectively tackle improving the availability and reliability of satellite positioning to achieve practical application.