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Development of the forest monitoring method using GPS signal degradation under tree canopies

Research Project

Project/Area Number 23580206
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Forest science
Research InstitutionKyoto University

Principal Investigator

HASEGAWA Hisashi  京都大学, フィールド科学教育研究センター, 准教授 (70263134)

Project Period (FY) 2011 – 2013
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2013: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2012: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2011: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
KeywordsGPS / GLONASS / 信号分断度(SIP) / LIDAR / 林分情報 / GNSS / 森林 / SIP / 測位精度
Research Abstract

Objective of this study is to establish a method for estimation of GPS positioning accuracy and stand information, such as stand volume or stand density, by using SIP (Signal Interruption Probability) value, which indicates status of GPS signal reception divided by forest canopies.
It was clarified that SIP values calculated from 10 - 15 minutes have the highest correlation to GPS positional errors, and the correlation of SIP values to GPS positional errors is significantly higher than the canopy opening index calculated by a hemispherical photograph and DOP value through GPS observation tests in various forest stands and seasons.
Furthermore, it was also clarified that SIP can be applied to not only GPS positioning but also combination use of GPS and GLONASS, and that SIP can be used for error management for float solutions which is considered to be difficult through GNSS observation tests using GPS and GLONASS receivers.

Report

(4 results)
  • 2013 Annual Research Report   Final Research Report ( PDF )
  • 2012 Research-status Report
  • 2011 Research-status Report
  • Research Products

    (13 results)

All 2013 2012

All Journal Article (8 results) (of which Peer Reviewed: 1 results) Presentation (5 results)

  • [Journal Article] GPS Accuracy in Using Antenna Pole under Tree Canopies and Usability of Signal Interruption Probability (SIP) for Accuracy Estimation2013

    • Author(s)
      Bastos, A. S., Hasegawa, H., and Yoshimura, T.
    • Journal Title

      J. Jpn

      Pages: 1-6

    • NAID

      110009636057

    • Related Report
      2013 Final Research Report
  • [Journal Article] Behavior of GPS Signal Interruption Probability under Tree Canopies in Different Forest Conditions2013

    • Author(s)
      Bastos, A. S. and For. Eng.28(3), Hasegawa, H.
    • Journal Title

      Euro. J. Remote Sensing

      Volume: 46 Pages: 613-622

    • Related Report
      2013 Annual Research Report 2013 Final Research Report
  • [Journal Article] Behavior and usability of the Signal Interruption Probability (SIP) in GNSS surveying under tree canopies2013

    • Author(s)
      Hasegawa, H., Bastos, A. S., and Shirasawa, H., and Yoshimura, T.
    • Journal Title

      Proceedings of the International Symposium on Tropical Forest Ecosystem Science and Management

    • Related Report
      2013 Final Research Report
  • [Journal Article] A preliminary investigation of the relationship between GPS signal quality and forest canopy structure with airbone lidar data, Proceedings of the International Symposium on Tropical2013

    • Author(s)
      Shirasawa, H., Hasegawa, H., and Bastos, A. S.
    • Journal Title

      Forest Ecosystem Science and Management

    • Related Report
      2013 Final Research Report
  • [Journal Article] GPS Accuracy in Using Antenna Pole under Tree Canopies and Usability of Signal Interruption Probability (SIP) for Accuracy Estimation2013

    • Author(s)
      Bastos, A. S., Hasegawa, H., and Yoshimura, T.
    • Journal Title

      J. Jpn. For. Eng.

      Volume: 28(3) Pages: 1-6

    • NAID

      110009636057

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Behavior and usability of the Signal Interruption Probability (SIP) in GNSS surveying under tree canopies2013

    • Author(s)
      Hasegawa, H., Bastos, A. S., Shirasawa, H., and Yoshimura, T.
    • Journal Title

      Proceedings of the International Symposium on Tropical Forest Ecosystem Science and Management 2013

      Volume: -

    • Related Report
      2013 Annual Research Report
  • [Journal Article] Evaluation of GPS signal reception under tree canopies using different antenna heights.2012

    • Author(s)
      Bastos, A. S. and Hasegawa, H.
    • Journal Title

      Proceedings of International Ergonomic Workshop : Ergonomic Challenges in Future Forest and Forestry

      Pages: 305-305

    • Related Report
      2013 Final Research Report
  • [Journal Article] Evaluation of GPS signal reception under tree canopies using different antenna heights2012

    • Author(s)
      Alex Souza Bastos and Hisashi Hasegawa
    • Journal Title

      Proceedings of International Ergonomic Workshop: Ergonomic Challenges in Future Forest and Forestry

      Volume: 1

    • Related Report
      2012 Research-status Report
  • [Presentation] Behavior and usability of the Signal Interruption Probability (SIP) in GNSS surveying under tree canopies2013

    • Author(s)
      Hasegawa, H., Bastos, A. S., Shirasawa, H., and Yoshimura, T.
    • Organizer
      The International Symposium on Tropical Forest Ecosystem Science and Management
    • Place of Presentation
      Bintul, Malasia
    • Related Report
      2013 Final Research Report
  • [Presentation] A preliminary investigation of the relationship between GPS signal quality and forest canopy structure with airbone lidar data2013

    • Author(s)
      Shirasawa, H., Hasegawa, H., and Bastos, A. S.
    • Organizer
      the International Symposium on Tropical Forest Ecosystem Science and Management 2013
    • Place of Presentation
      Bintul, Malasia
    • Related Report
      2013 Final Research Report
  • [Presentation] Behavior and usability of the Signal Interruption Probability (SIP) in GNSS surveying under tree canopies2013

    • Author(s)
      Hasegawa, H., Bastos, A. S., Shirasawa, H., and Yoshimura, T.
    • Organizer
      the International Symposium on Tropical Forest Ecosystem Science and Management
    • Place of Presentation
      Bintul, Malasia
    • Related Report
      2013 Annual Research Report
  • [Presentation] Evaluation of GPS signal reception under tree canopies using different antenna heights2012

    • Author(s)
      Bastos, A. S. and Hasegawa, H.
    • Organizer
      Proceedings of International Ergonomic Workshop : Ergonomic Challenges in Future Forest and Forestry
    • Place of Presentation
      Nagoya, Japan
    • Related Report
      2013 Final Research Report
  • [Presentation] Evaluation of GPS signal reception under tree canopies using different antenna heights2012

    • Author(s)
      Alex Souza Bastos and Hisashi Hasegawa
    • Organizer
      International Ergonomic Workshop: Ergonomic Challenges in Future Forest and Forestry
    • Place of Presentation
      Nagoya, Japan
    • Related Report
      2012 Research-status Report

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Published: 2011-08-05   Modified: 2019-07-29  

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