| 海底数字地形模型的空间不确定性分析 |
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| 引用本文： | 孟婵媛,王晖,李明辉,邹永刚.海底数字地形模型的空间不确定性分析[J].海洋测绘,2011,31(3):31-33. |
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| 作者姓名： | 孟婵媛 王晖 李明辉 邹永刚 |
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| 作者单位： | 1. 海军海洋测绘研究所,天津,300061
2. 海军出版社,天津,300450 |
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| 摘 要： | 分析了格网海底数字地形模型(DTM)对真实海底表达所带来的精度损失,提出了海底DTM的"浅点扩展"原则.试验证明,"浅点扩展"原则能够较好地保证DTM对海底浅点的表达,提高对海底真实地形的表达精度.
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| 关 键 词： | 数字地形模型 浅点扩展 精度损失 海底地形 |
Space Uncertainty Analyze of Submarine Digital Terrain Model |
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| MENG Chan-yuan,WANG Hui,LI Ming-hui,ZOU Yong-gang.Space Uncertainty Analyze of Submarine Digital Terrain Model[J].Hydrographic Surveying and Charting,2011,31(3):31-33. |
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| Authors: | MENG Chan-yuan WANG Hui LI Ming-hui ZOU Yong-gang |
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| Institution: | 1.Naval Institute of Hydrographic Surveying and Charting,Tianjin,300061;2.Navy Press,Tianjin,300450) |
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| Abstract: | The precision loss of grid submarine digital terrain model to real marine topography is discussed,a new ＂shallow extend＂ principle of submarine DTM is put forward.It＇s proved that this principle can ensure the expression of submarine shallow preferably and improve the precision. |
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| Keywords: | digital terrain model shallow extend precision loss submarine topography |
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