Koki Asari, PhD

Asari specializes in GNSS navigation and 3-D mapping. He graduated from Waseda University with a major in robotics, obtained a master’s degree from the Open University of Japan (OUJ) with a major in social management science and earned his PhD.from Ritsumeikan University. In 2010, he studied and developed the QZSS Centimeter-class Augmentation System as the first prototype service. He currently serves as the director of Japan Space Systems, leading the application frontier of GNSS navigation. Additionally, he is the deputy convener of ISO/TC20/SC14/WG8 'Downstream space services and space-based applications' and the IEC/TC80 project leader of QZSS.

---

Presentation

Navigation using the Quasi-Zenith Satellite System (QZSS), high-definition maps and positioning

The QZSS is a Japanese constellation of the Global Navigation Satellite System (GNSS). A proposal for IEC 61108-8 on QZSS navigation receivers has been made. This is an international standard created in accordance with IMO resolutions. QZSS is scheduled to expand to a seven-satellite system within two years. QZSS is equipped with the Centimeter-Level Augmentation Service (CLAS), which is useful for creating high-definition maps for precise autonomous ship operations including automatic docking. Japan is developing a new concept that considers very accurate geodetic positioning for precise maritime navigation.