The Operational Phase Performance of Centimeter-Level Augmentation Service (CLAS)

Rui Hirokawa, Kenji Nakakuki, Seigo Fujita, Yuki Sato, Akinari Uehara

Abstract: The operational service of CLAS of Japan Quazi-Zenith-Satellite-System (QZSS), a nation-wide satellite-based PPP-RTK service in Japan having the centimeter level positioning accuracy begun on November 1, 2018. In this paper, the result of continuous performance evaluation on the multiple stations of the Japan CORS network is presented, the positioning accuracy and the time-to- ambiguity fix (TTFF) evaluated in the static and kinematic condition. A kinematic van test result applying CLAS correction with a prototype GNSS receiver is also presented, it is confirmed that the positioning accuracy comparable with the conventional RTK. In this performance evaluation, CLAS Test Library (CLASLIB), open-source software tools for PPP-RTK based on RTKLIB is introduced and applied.
Published in: Proceedings of the ION 2019 Pacific PNT Meeting
April 8 - 11, 2019
Hilton Waikiki Beach
Honolulu, Hawaii
Pages: 349 - 360
Cite this article: Hirokawa, Rui, Nakakuki, Kenji, Fujita, Seigo, Sato, Yuki, Uehara, Akinari, "The Operational Phase Performance of Centimeter-Level Augmentation Service (CLAS)," Proceedings of the ION 2019 Pacific PNT Meeting, Honolulu, Hawaii, April 2019, pp. 349-360.
https://doi.org/10.33012/2019.16810
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