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中文摘要：
选择丘陵、高原和高山3种地形，以9个不同空缺面积的SRTM3为研究对象，基于高精度曲面建模方法（HASM）分别使用和不使用辅助数据SRTM30对SRTM3空缺插值填补，并与传统方法（TIN、SPLINE和IDW）的填补精度比较。结果表明，无论是否使用SRTM30，HASM填补精度均高于传统的方法，且在复杂地形区域填补优势较传统的方法高于平坦区域；地形复杂度和空缺面积均影响HASM填补精度，HASM在地形复杂度低且空缺面积小的区域填补精度要优于地形复杂度高且大空缺区域；基于HASM填补小空缺且地形复杂度低的区域，无需使用SRTM30，但大空缺且地形复杂度高的区域需借助SRTM30。
英文摘要：
Through a case of SRTM over nine vacancies of different size classes and three terrain types including hill, plateau and mountain the void-filling accuracy of high accuracy surface modelling （HASM） with those of the classical interpolation methods including TIN, SPLINE and IDW with and without auxiliary data sources of SRTM30 are compared. The results indicates that no matter whether SRTM30 is used, HASM is more accurate than TIN, SPLINE and IDW. Compared with the classical interpolation methods, the filling superiority of HASM in complex area is higher than that in flat areas. Both the terrain type and area size of the voids have the effect on the void-filling accuracy of HASM. HASM has a higher filling accuracy for small-sized voids in relatively flat areas than for big-sized voids in mountain regions. The auxiliary data of SRTM30 should not be used for small-sized voids in relatively flat areas, but it should be used to fill big-sized voids in mountain regions.
同期刊论文项目
同项目期刊论文
An Adaptive Method of High Accuracy Surface Modeling and Its Application to Simulating Elevation Sur
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