| 顾及海底地形变化的狄洛尼三角网构建 |
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| 引用本文： | 陆秀平.顾及海底地形变化的狄洛尼三角网构建[J].海洋测绘,2010(Z1):93-97. |
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| 作者姓名： | 陆秀平 |
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| 作者单位： | 海军海洋测绘研究所,天津 300061 |
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| 摘 要： | 数字水深模型是对海底表面形态的数字化表达,传统的网格数字水深模型存在不能根据海区水深变化情况自动调节内插水深间隔的不足,提出了以深度极限误差作为判断标准,顾及海底地形变化的补深补浅方法,并在此基础上构建了相应的狄洛尼三角网。 实验证明:与传统的最浅点抽稀规则格网方法相比,所提方法更能合理的反映出海底地形的实际变化情况,并明显改善 DDM 精度。
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| 关 键 词： | 海底地形 极限误差 数字水深模型 狄洛尼三角网 |
Conformation of Delaunay Triangle Grid Considering the Change of Seabed Terrain |
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| LU Xiu-ping.Conformation of Delaunay Triangle Grid Considering the Change of Seabed Terrain[J].Hydrographic Surveying and Charting,2010(Z1):93-97. |
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| Authors: | LU Xiu-ping |
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| Institution: | Naval Institute of Hydrographic Surveying and Charting,Tianjin, 300061 |
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| Abstract: | Aiming at the drawbacks of not automatic adjusting depth space according to depth variance in different sea areas in traditional methods for constructing digital depth model (DDM),a method for constructing DDM considering the change of seabed terrain is proposed. Experimental results demonstrate that the proposed method can reflect the change of the seabed terrain reasonable and improve the accuracy of DDM. |
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