...Widely used for detailed surveying to create large-scale maps. (8) Satellite survey: A method of determining the position of ground observation points using artificial satellites. There are photographic observation methods that use the stars as a background to determine the direction of the artificial satellite, methods that directly measure the distance to the artificial satellite using laser light, and methods that use the Doppler effect of radio waves emitted by the satellite. Methods that use radio waves are currently used in many countries, and are particularly used to survey areas where there is no line of sight, such as dense forests, and to determine the position of ships on the ocean (space geodesy). ... *Some of the terminology used to refer to "satellite survey" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…大縮尺の図を作成する細部の測量に広く用いられる。(8)衛星測量satellite survey 人工衛星を用いて地上観測点の位置を求める方法で,星を背景として人工衛星の方向を求める写真観測法,人工衛星までの距離をレーザー光等で直接測定する方法,衛星の発射する電波のドップラー効果による方法がある。電波を用いる方法は現在各国で用いられており,特に密林地など互いに見通しのない地点の測量や,大洋上の船位の確定に利用されている(宇宙測地)。… ※「satellite survey」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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