Accuracy assessment of real-time kinematic survey using a low-cost dual-frequency GNSS receiver in a sugi (Cryptomeria japonica) plantation forest

DOI

Bibliographic Information

Other Title
  • スギ人工林における低コスト2周波GNSS受信機によるRTK測位の精度評価

Description

<p>In recent years, conducting RTK (real-time kinematic) measurements in conditions such as the forest environment has become possible.This study evaluated positional errors of RTK measurements in terms of precision, accuracy, and 2DRMS in a sugi (Cryptomeria japonica) plantation forest with a low-cost dual-frequency GNSS receiver and high-precision positioning service (SoftBank Corporation). It was found that errors in precision (0.17–0.47 m), accuracy (0.85–0.93 m), and 2DRMS (1.78–2.24 m) were much greater than those under the open skies. Area measurements showed that the area calculated by the RTK coordinates was found to be −3.7%, which was satisfactory considering the small area measured. However, standing trees negatively impacted fixed solution rates, ranging between 15.4% and 29.9%. The t test found that there was no significant difference in the positional accuracy between fixed and float solutions. Therefore, float solutions which are equivalent to fixed solutions in the forest environment should be used instead. Although additional trials were conducted to improve the positional accuracy with a different type and higher height of GNSS antenna, no significant improvement was found.</p>

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Keywords

Details 詳細情報について

  • CRID
    1390857523690591744
  • DOI
    10.18945/jjfes.37.183
  • ISSN
    21896658
    13423134
  • Text Lang
    ja
  • Data Source
    • JaLC
  • Abstract License Flag
    Disallowed

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