摘要
提出了一种顾及各向异性的数字水深模型插值方法,通过局部水深信息解析海底地形的微地貌结构特征,构建了顾及距离和方向的水深插值模型。实验证明,所提方法较距离反比例平方加权法能更多地保留地形信息,同时具有更高的插值精度和插值稳定性。
In this paper,the effect of sounding anisotropy during the course of depth interpolating is discussed.Then a method for depth interpolating based on spatial structure of sounding field is proposed.Experimental results demonstrate that the proposed method saves more terrain information and also improves the quality and the stability of interpolating result.
出处
《海洋测绘》
2011年第5期31-33,37,共4页
Hydrographic Surveying and Charting
基金
国家自然科学基金项目(40801189)
关键词
各向异性
海底地形
空间结构
水深插值
anisotropy
marine topography
spatial structure
depth interpolation
