位置天文学における新技術の実用的な制度

DOI
  • 土屋 淳
    Tokyo Astronomical Observatory , University of Tokyo

書誌事項

タイトル別名
  • Geodetic Application Feasibility of New Techniques in Position Astronomy

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説明

Accuracies of Doppler satellite tracking, satellite and lunar laser rangings and the very long baseline interferometer (VLBI) for geodetic applications are discussed from the practical point of view . As two radio waves at two operating frequencies pass through different regions in the ionosphere due to the difference in refractive indices, for the Doppler satellite system, error is caused, especially at lower satellite angles of elevation and limits accuracy . An accuracy of 10 cm will be practically obtained by laser ranging and VLBI . To improve the accuracy to 1 cm, much effort is necessary, i.e., the development of short pulse laser, high speed electronics, accurate retro-reflectors for laser ranging; and for VLBI, the ionospheric and atmospheric effects should be studied more carefully and the limitation of SN in the receiving system should be overcome .

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詳細情報 詳細情報について

  • CRID
    1390001204067808896
  • NII論文ID
    130004189198
  • DOI
    10.11366/sokuchi1954.22.264
  • ISSN
    2185517X
    00380830
  • データソース種別
    • JaLC
    • CiNii Articles
  • 抄録ライセンスフラグ
    使用不可

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