| 高精度曲面模型的解算 |
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| 引用本文： | 陈传法,岳天祥,张照杰.高精度曲面模型的解算[J].武汉大学学报(信息科学版),2010(3). |
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| 作者姓名： | 陈传法 岳天祥 张照杰 |
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| 作者单位： | 中国科学院地理科学与资源研究所;山东正元地理信息工程有限责任公司; |
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| 基金项目： | 国家863计划资助项目(2006AA12Z219); 中国科学院知识创新工程重要方向资助项目(kzcx2-yw-429); 国家杰出青年科学基金资助项目(40825003); 国家科技支撑计划资助项目(2006BAC08B04) |
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| 摘 要： | 为了提高Gass-Seidel(GS)算法的收敛速度,提出了改进的GS算法(MGS),用于解算高精度曲面模型(HASM)(HASM-MGS)。以高斯合成曲面为研究对象,将HASM-MGS与HASM-GS和Matlab提供的函数进行对比,结果表明,达到相同的模拟中误差,HASM-MGS计算时间远小于HASM-GS和Matlab提供的函数;HASM-MGS计算时间与模拟区域的网格数呈非常好的线性关系,时间复杂度比传统的方法降低两个数量级。
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| 关 键 词： | 精度 插值 模拟 误差 |
An Algorithm for Solving High Accuracy Surface Modeling |
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| CHEN Chuanfa YUE Tianxiang ZHANG Zhaojie.An Algorithm for Solving High Accuracy Surface Modeling[J].Geomatics and Information Science of Wuhan University,2010(3). |
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| Authors: | CHEN Chuanfa YUE Tianxiang ZHANG Zhaojie |
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| Institution: | CHEN Chuanfa1 YUE Tianxiang1 ZHANG Zhaojie2(1 Institute of Geographic Sciences , Natural Resources Research,CAS,A11 Datun Road,Beijing 100101,China)(2 Sh,ong Zhengyuan Geographic Information Engineering Co.Ltd,3366 Yingxiu Road,Jinan 250014,China) |
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| Abstract: | High accuracy surface modelling(HASM)constructed based on the fundamental theorem of surfaces is more accurate than the classical methods.But HASM must solve a big sparse linear systems.Gauss-Seidel(GS)can be considered as the first method for solving the linear systems.In order to decrease the computation costs and improve the accuracy of HASM,we employed a modified Gauss-Seidel(HASM-MGS)to solve the linear systems of HASM.Gauss synthetic surface was selected as the research object.We proved that HASM-MGS ... |
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| Keywords: | accuracy interpolation simulation error |
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