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原文传递 Airborne GPS Controlled Photogrammetry: The Maine Experience; Technical research rept. (Final)

题名：	Airborne GPS Controlled Photogrammetry: The Maine Experience; Technical research rept. (Final)
作者：	LeSiege, T.
关键词：	Aerial photography; Photogrammetry; Global positioning system; Maine; Mapping; Triangulation; Terrain; Topography; Airborn equipment; Geodesy; Transportation departments; Error analysis; Accuracy; Acceptability; Cost analysis; Cost reduction
摘要：	The Photogrammetry and Control Unit of the Survey Section requested authorization to research the use of Airborne GPS controlled Photogrammetry for engineering and design purposes. The research was to provide data toward solving questions of cost savings, accuracy and acceptability of this technology in terrain of changing topography. Two different projects with different terrain patterns and different scopes were chosen and targeted traditionally. The number of control points used in the final aerotriangulation was determined by resolving error propagation of the remaining targeted control points. Once current map accuracy standards were met within the control target coordinate set, the photogrammetric mapping was completed. Each project was mapped by a different consultant, using different aerotriangulation methods. The results indicate that current standard map accuracy standards can be met using Airborne GPS controlled photogrammetry with chaning terrain and changing topography. The cost savings of the Airborne GPS controlled photogrammetry is mostly in the targeting stage of the projects.
总页数：	24p
报告类型：	科技报告