| 顾及不确定度的数字水深模型内插方法 |
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| 引用本文： | 张立华,贾帅东,吴超,殷晓冬.顾及不确定度的数字水深模型内插方法[J].测绘学报,2011,40(3):359-365. |
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| 作者姓名： | 张立华 贾帅东 吴超 殷晓冬 |
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| 作者单位： | 海军大连舰艇学院海洋测绘科学与工程系,辽宁大连,116018 |
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| 基金项目： | 国家863计划(2009AA12Z202); 国家自然科学基金(40801189) |
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| 摘 要： | 提出一种顾及不确定度的数字水深模型(DDM)内插方法.计算数据来源不同的水深不确定度,构建水深数据权重配赋中加入不确定度的数据内插模型,实现水深内插点的不确定度估计.试验证明,所提方法提高了DDM的构建质量,并可评估内插水深的不确定度.
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| 关 键 词： | 数字水深模型 不确定度 内插 |
| 收稿时间： | 2010-04-13 |
| 修稿时间： | 2010-07-29 |
A Method for Interpolating Digital Depth Model Considering Uncertainty |
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| ZHANG Lihua,JIA Shuaidong,WU Chao,YIN Xiaodong.A Method for Interpolating Digital Depth Model Considering Uncertainty[J].Acta Geodaetica et Cartographica Sinica,2011,40(3):359-365. |
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| Authors: | ZHANG Lihua JIA Shuaidong WU Chao YIN Xiaodong |
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| Institution: | ZHANG Lihua,JIA Shuaidong,WU Chao,YIN Xiaodong Department of Hydrograhy and Cartography,Dalian Naval Academy,Dalian 116018,China |
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| Abstract: | A method for interpolating digital depth model(DDM) considering uncertainty is proposed.The uncertainty of the soundings deriving from the different data sources is calculated,the interpolation model by using the uncertainty in weighting for the soundings is constructed,and the uncertainty of the interpolated depth node is estimated.Experimental results demonstrate that the proposed method has improved the quality of DDM and can estimate the uncertainty of the interpolated depth node. |
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| Keywords: | digital depth model uncertainty interpolotion |
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