| ????BP???????SRTM?????????????????о? |
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| 引用本文： | 张守建,李建成,王正涛,邢乐林.????BP???????SRTM?????????????????о?[J].大地测量与地球动力学,2008,28(5):96-99. |
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| 作者姓名： | 张守建 李建成 王正涛 邢乐林 |
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| 作者单位： | 1. 武汉大学测绘学院,武汉,430079
2. 武汉大学测绘学院,武汉,430079;中国地震局地震研究所,武汉,430071 |
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| 摘 要： | ?????????????????????????????????????????????г?????????????????SRTM??????????е?????????????????????????????TIN?????????????6.3 m????????????????????????ε?????仯?????????Χ???ε??????ν????TIN?????á?
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| 关 键 词： | SRTM DEM ?????? TIN ??? |
ON SRTM VOID AREA DATA FILLING METHOD BASED ON BP NETWORK |
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| Zhang Shoujian,Li Jiancheng,Wang Zhengtao,Xing Lelin.ON SRTM VOID AREA DATA FILLING METHOD BASED ON BP NETWORK[J].Journal of Geodesy and Geodynamics,2008,28(5):96-99. |
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| Authors: | Zhang Shoujian Li Jiancheng Wang Zhengtao Xing Lelin |
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| Institution: | 1) School of Geodesy and Geomatics, Wuhan University, Wuhan 4300792) Institute of Seismology,CEA, Wuhan 430071 |
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| Abstract: | Owing to the non-linear characteristic of the topographic data,the interpolation method with linear function such as TIN can not reach high accuracy.We analyzed the interpolated accuracy with the neural network method in the SRTM void data filling,thus any non-linear function can be approached more precisely.The analysis demonstrates that the accuracy of the neural network improves 6.3 m as comparing to the TIN method,and the contour line trends with the neural network method are smoother than that with the TIN method. |
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| Keywords: | SRTM DEM TIN |
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