Improving availability and accuracy of multi- GNSS positioning using QZSS

    研究成果: Conference contribution

    2 引用 (Scopus)

    抄録

    This paper describes a new positioning method that improves the availability and accuracy of Multi-global navigation satellites system (GNSS) positioning by using QZSS satellites in urban canyon environments. Standard multi-GNSS is problematic because one satellite is defined as the master satellite in each GNSS, leaving insufficient numbers of satellites for positioning roles. Our new method uses QZSS as the sole master satellite. To this end, we solve the ambiguity of QZSS by the wide- lane method and the QZSS LEX signal, and preserve that double-difference (DD) ambiguity is integral number. We also estimate the inter system bias (ISB). The GNSS used in our method includes GPS, QZSS, GLONASS, Galileo, and BeiDou satellites. Static evaluation tests were conducted in open-sky and narrow-sky environments. The open-sky evaluation confirmed the accurate positioning ability of our proposed method (horizontal RMS error: 1.6 cm), whereas the narrow-sky evaluation confirmed that our proposed method operates with accurate positioning and high availability in urban canyon environments (fixed ratio: 92.7%, horizontal RMS error: 4.2 cm). In conclusion, our method realizes high accuracy and availability high-coverage positioning.

    元の言語English
    ホスト出版物のタイトル27th International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS 2014
    出版者Institute of Navigation
    ページ2341-2345
    ページ数5
    3
    ISBN(印刷物)9781634399913
    出版物ステータスPublished - 2014
    イベント27th International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS 2014 - Tampa, United States
    継続期間: 2014 9 82014 9 12

    Other

    Other27th International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS 2014
    United States
    Tampa
    期間14/9/814/9/12

    Fingerprint

    Navigation
    Availability
    Satellites
    Global positioning system

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering
    • Aerospace Engineering
    • Computer Science Applications
    • Software

    これを引用

    Kitamura, M., Ohta, T., & Amano, Y. (2014). Improving availability and accuracy of multi- GNSS positioning using QZSS. : 27th International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS 2014 (巻 3, pp. 2341-2345). Institute of Navigation.

    Improving availability and accuracy of multi- GNSS positioning using QZSS. / Kitamura, M.; Ohta, Tohru; Amano, Yoshiharu.

    27th International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS 2014. 巻 3 Institute of Navigation, 2014. p. 2341-2345.

    研究成果: Conference contribution

    Kitamura, M, Ohta, T & Amano, Y 2014, Improving availability and accuracy of multi- GNSS positioning using QZSS. : 27th International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS 2014. 巻. 3, Institute of Navigation, pp. 2341-2345, 27th International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS 2014, Tampa, United States, 14/9/8.
    Kitamura M, Ohta T, Amano Y. Improving availability and accuracy of multi- GNSS positioning using QZSS. : 27th International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS 2014. 巻 3. Institute of Navigation. 2014. p. 2341-2345
    Kitamura, M. ; Ohta, Tohru ; Amano, Yoshiharu. / Improving availability and accuracy of multi- GNSS positioning using QZSS. 27th International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS 2014. 巻 3 Institute of Navigation, 2014. pp. 2341-2345
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    abstract = "This paper describes a new positioning method that improves the availability and accuracy of Multi-global navigation satellites system (GNSS) positioning by using QZSS satellites in urban canyon environments. Standard multi-GNSS is problematic because one satellite is defined as the master satellite in each GNSS, leaving insufficient numbers of satellites for positioning roles. Our new method uses QZSS as the sole master satellite. To this end, we solve the ambiguity of QZSS by the wide- lane method and the QZSS LEX signal, and preserve that double-difference (DD) ambiguity is integral number. We also estimate the inter system bias (ISB). The GNSS used in our method includes GPS, QZSS, GLONASS, Galileo, and BeiDou satellites. Static evaluation tests were conducted in open-sky and narrow-sky environments. The open-sky evaluation confirmed the accurate positioning ability of our proposed method (horizontal RMS error: 1.6 cm), whereas the narrow-sky evaluation confirmed that our proposed method operates with accurate positioning and high availability in urban canyon environments (fixed ratio: 92.7{\%}, horizontal RMS error: 4.2 cm). In conclusion, our method realizes high accuracy and availability high-coverage positioning.",
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    AB - This paper describes a new positioning method that improves the availability and accuracy of Multi-global navigation satellites system (GNSS) positioning by using QZSS satellites in urban canyon environments. Standard multi-GNSS is problematic because one satellite is defined as the master satellite in each GNSS, leaving insufficient numbers of satellites for positioning roles. Our new method uses QZSS as the sole master satellite. To this end, we solve the ambiguity of QZSS by the wide- lane method and the QZSS LEX signal, and preserve that double-difference (DD) ambiguity is integral number. We also estimate the inter system bias (ISB). The GNSS used in our method includes GPS, QZSS, GLONASS, Galileo, and BeiDou satellites. Static evaluation tests were conducted in open-sky and narrow-sky environments. The open-sky evaluation confirmed the accurate positioning ability of our proposed method (horizontal RMS error: 1.6 cm), whereas the narrow-sky evaluation confirmed that our proposed method operates with accurate positioning and high availability in urban canyon environments (fixed ratio: 92.7%, horizontal RMS error: 4.2 cm). In conclusion, our method realizes high accuracy and availability high-coverage positioning.

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