基于多层B样条的海底地形生成方法

海底地形是海洋环境的主要组成部分，也是航海技术领域的发展新方向。通过对当前海底地形数据来源的分析，该文提出了一种利用电子海图水深数据模拟三维海底地形的方法。该方法以处理大规模散乱数据的多层B-spline插值算法作为基础．利用较少的水深数据生成规则格网的数学模型，进而构建真实的海底地形环境。最后进行了仿真工作，仿真结果证明该算法是可行的。本文提出的思路对海底地形的模拟具有重要的参考价值。

Creation of Seabed Terrain Based on Multi-B Spline

Seabed terrain is the main compositive part of the ocean environment a nd the new development direction of navigation technology field. In this paper a n algorithm for simulating 3D seabed terrain using depth datum in electronic cha r t is presented through the analysis of data source of seabed terrain. This metho d takes the multi-B spline method for massive scattered data as basic and establ ishes the mathematic model of regular net, so the three-dimensional terrain envi ro nment is constructed. Finally the simulation is achieved and the validity of the algorithm is demonstrated by the simulation results. The idea in this article h as an important reference value to the simulation of sea digital terrain.