POS辅助空三测量在地形图更新项目中的应用研究

The application of POS-aided aerial triangulation to topography updating

通过POS辅助空三测量在地形图更新项目中的应用试验,研究该技术条件下地形图更新外业像控点布设方案、分析内业空三加密精度,为地形图更新提供相关的技术参考。该技术能减少外业工作量,缩短基础地形图的更新周期,及时为数字地球的建立提供现势性较强的数据。

This paper introduces the experiments of applying POS-aided aerial triangulation to updating topography. The layout of control points is researched. The precision of aerial triangulation is ana-lyzed to provide the technological references for topography updating. The results prove the effectiveness of this technology in reducing the workload outdoors and shortening the updating cycle of basic topography. The technology will provide real-time data for the establishment of digital earth and thus better serve the society.