多波束海底地形图的制作方法探讨

Mapping Method of Seafloor Topographic Map Using Multibeam Echosounding Bathymetry Data

提出了采用高斯距离函数加权平均算法,对离散多波束数据进行网格化,该算法的优点是权函数收敛较快,能较好地保留细小的地形特征,而且运算速度较快。对于图形制作方面,提出了2D等深线图叠加3D阴影图模式的海底地形图的绘制思路及实现方法,最终成果图立体感强,可以更好地表现出地形细节。最后就如何改进海底地形图的配色方案进行了探讨。

In this paper, the Gaussian weighted average algorithm is proposed to grid efficiently the discrete multi- beam data. That results in preserving the small terrain features and the faster convergence of the weight function. And then, a mapping method, which recommends 2D contour chart overlaying with the 3D shaded relief map, can achieve the final results of a good perspective and fine details of the terrain. Finally, how to improve the color schemes of the bathymetric chart is discussed.