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Accuracy Control Analysis in Island Mapping Based on WorldView Satellite Images
Author(s): 
Pages: 45-48
Year: Issue:  2
Journal: Hydrographic Surveying and Charting

Keyword:  WorldView卫星影像稀少控制自由网平差;
Abstract: 根据WorldView卫星影像的特点,分析其原始定位精度,并结合海岛测区的地形地貌特点,应用稀少控制卫星影像航天摄影测量平差方法,合理地进行控制点布设,同时有效控制外推岛屿的定位精度.对于独立海岛进行无控自由网平差,并量测一定数量的海岸水位点作为高程点,进行模型置平作业.通过比对实测瞬时水涯线,检查、检测其海岸线高程精度.最终保证数字空中三角测量的成果满足海岛(礁)测图卫星影像成图区的成果精度要求.
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