Evaluation of Kinematic GPS software Based on Experiment of Positioning for Moving Object with Various Baseline Length

DOI Web Site 2 Citations 32 References
  • Sugimoto Shingo
    Research Center for Seismology, Volcanology, and Disaster Mitigation, Graduate School of Environmental Studies, Nagoya University
  • Osada Yukihito
    Research Center for Prediction of Earthquakes and Volcanic Eruptions, Graduate School of Science, Tohoku University
  • Ishikawa Tadashi
    Hydrographic and Oceanographic Department, Japan Coast Guard
  • Asakura Takaya
    Hydrographic and Oceanographic Department, Japan Coast Guard
  • Tadokoro Keiichi
    Research Center for Seismology, Volcanology, and Disaster Mitigation, Graduate School of Environmental Studies, Nagoya University
  • Watanabe Tsuyoshi
    Research Center for Seismology, Volcanology, and Disaster Mitigation, Graduate School of Environmental Studies, Nagoya University
  • Okuda Takashi
    Research Center for Seismology, Volcanology, and Disaster Mitigation, Graduate School of Environmental Studies, Nagoya University
  • Takatani Kazunori
    Department of Earth and Environmental Science, Graduate School of Environmental Studies, Nagoya University
  • Ikuta Ryoya
    Research Center for Seismology, Volcanology, and Disaster Mitigation, Graduate School of Environmental Studies, Nagoya University
  • Ando Masataka
    Research Center for Seismology, Volcanology, and Disaster Mitigation, Graduate School of Environmental Studies, Nagoya University

Bibliographic Information

Other Title
  • 基線長別移動体測位実験によるキネマティックGPSソフトウェアの評価
  • キセンチョウ ベツ イドウタイソクイ ジッケン ニ ヨル キネマティック GPS ソフトウェア ノ ヒョウカ

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Description

The precision of three kinematic GPS softwares, GIPSY/OASIS II, IT, and GrafNav, was evaluated for seafloor geodetic observation. Positions of a rover station moving on a precise slider were determined from several reference stations located at different baseline lengths of 10 m, 30 km, 60 km, 90 km, 110 km, and 150 km. Reference solution was obtained from the shortest baseline (10 m) using each software, and then other solutions from longer baselines were compared with the reference one. The result showed that the precision (root-mean-square) of the positioning by the three softwares was ∼2 cm horizontally and ∼5 cm vertically. Moreover, even with the larger baseline lengths, there was no apparent decrease in positioning precision. However, it was observed that the precision was affected more by the spatio-temporal variation of atmospheric environment rather than by the variation of baseline length.

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