A new test method for single interior right angle in a corner cube prism is presented. Some key points and parameters are analyzed and derived. The advantage of this method is concluded by comparing w
intersection model is the most popular framework used for formalizing the spatial relations between two spatial objects A and B. It transforms the topological relation- ships between two simple spatia
In conventional aerial photogrammetry, the high accurate photogrammetric point determination is always carried out by aerotriangulation using a great deal of ground control points around the perimeter
Dynamic characteristics of large structures,such as tall buildings,long_span suspension,cable_stayed bridges and tall chimneys,are key to assess their drift and stress conditions.The dynamic character
Scheme of positioning constellation would greatly influence the positioning performance. In this paper, a GEO/HEO hybrid constellation with 3 HEO satellites deployed in 3 orbits and 3 GEO satellites f