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Study on GNSS precise positioning of moving platform using multiple antennas and 3D building model

Research Project

Project/Area Number 16K06532
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Civil engineering project/Traffic engineering
Research InstitutionTokyo University of Marine Science and Technology

Principal Investigator

Kubo Nobuaki  東京海洋大学, 学術研究院, 教授 (80343169)

Project Period (FY) 2016-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2017: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2016: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
KeywordsGNSS / RTK / マルチパス / 3D地図 / 複数アンテナ / 電波伝搬 / GPS / レイトレーシング / 直接波 / アンテナ / 自動操縦 / 精密3D地図
Outline of Final Research Achievements

Accuracy improvement of GNSS using multiple antennas was implemented in 2017, and we were able to obtain the desired performance. Since it is necessary to switch input signals to multiple antennas, there is an issue in terms of continuity of carrier phase tracking. The accuracy improvement was particularly effective in the situation where a strong reflected signal was received.

From 2017 to 2019, we have developed GNSS positioning simulation software with 3D building map. With the GNSS simulation software uses a commercially available 3D map, we found that we could predict RTK performance about 80 % level compared with the real RTK performance using GNSS observation data. In the simulation, it was confirmed that simulation did not require cm level true positions for radio propagation simulation. Even several meters errors of antenna can be allowed to simulate GNSS signals to some degree.

Academic Significance and Societal Importance of the Research Achievements

今後の自動運転等を見越したとき、衛星測位による位置精度がどのくらい変化するのかや、どの程度の精度が担保できるかをシミュレーションである程度知れることは、衛星測位を実際に利用する場合極めて重要である。時々刻々変化する位置精度を、実データで検証することも大事だが、シミュレーション上で、この時刻のこの道路では、どのくらいの性能が得られる、ということを事前に確度高く知れると、効率的に技術開発を進めることができる。また3D地図による誤差の大きい衛星検知において、シミュレーション時のアンテナ位置を精密位置にしなくとも、ある程度性能を発揮できることがわかったことも、本分野への寄与が大きかったと考える。

Report

(5 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (7 results)

All 2019 2018 2017 2016

All Journal Article (2 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 2 results,  Open Access: 1 results,  Acknowledgement Compliant: 1 results) Presentation (5 results) (of which Int'l Joint Research: 4 results)

  • [Journal Article] Prediction of Fixing of RTK-GNSS Positioning in Multipath Environment Using Radiowave Propagation Simulation2019

    • Author(s)
      古川 玲, 久保 信明
    • Journal Title

      Journal of the Institute of Positioning, Navigation and Timing of Japan

      Volume: 10 Issue: 2 Pages: 13-22

    • DOI

      10.5266/ipntj.10.13

    • NAID

      130007687066

    • ISSN
      2185-2952
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Multipath Mitigation Technique under Strong Multipath Environment Using Multiple Antennas2017

    • Author(s)
      Nobuaki Kubo, Kaito Kobayashi, Li-Ta Hsu and Osamu Amai
    • Journal Title

      Journal of Aeronautics, Astronautics and Aviation

      Volume: 49 Pages: 75-82

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Presentation] Prediction of RTK-GNSS Performance in Urban Environments Using a 3D model and Continuous LoS Method2019

    • Author(s)
      Furukawa, Rei, Kubo, Nobuaki, El-Mowafy, Ahmed
    • Organizer
      Proceedings of the 2020 International Technical Meeting of The Institute of Navigation
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Performance Evaluation of the 3D MAP Based Precise Positioning and its Application2018

    • Author(s)
      Nobauki Kubo, Rei Furukawa
    • Organizer
      Proceedings of IEEE/ION PLANS 2018
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Framework and Performance Evaluation of a Ray Tracing-Software Defined Radio Method for GNSS Positioning in an Urban Canyon Environment2017

    • Author(s)
      Rei Furukawa,Yoto Emori, Yoshimi Fuji, Yukiko Kishiki,Takuji Ebinuma, Nobuaki Kubo
    • Organizer
      ITSNT 2017
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 3D都市データを用いた準天頂衛星の 効果シミュレーション2017

    • Author(s)
      神明奈, 久保信明, 古川玲
    • Organizer
      第61回宇宙科学技術連合講演会
    • Related Report
      2017 Research-status Report
  • [Presentation] Multipath Mitigation Technique under Strong Multipath Environment using Multiple Antennas2016

    • Author(s)
      Kaito Kobayashi, Nobuaki Kubo
    • Organizer
      IS-GNSS
    • Place of Presentation
      台湾
    • Year and Date
      2016-12-05
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research

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Published: 2016-04-21   Modified: 2021-02-19  

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