Evaluation of QZSS SLAS (Sub-meter Level Augmentation Service) Performance

Quasi-Zenith Satellite System (QZSS) is the Japanese satellite positioning system composed of satellites in quasi-zenith orbits, satellites in geostationary orbits, and ground-based systems. One of the services in QZSS is Sub-meter Level Augmentation Service (SLAS). SLAS broadcasts sub-meter level augmentation signal named L1S. L1S signal can be utilized to improve satellite positioning error. This paper provides a summary of the result of performance evaluation of SLAS in QZSS.