一种海底地形和海流虚拟生成方法

提出了一种用于AUV视景仿真的海洋环境中海底地形和海流的虚拟实现方法。海底地形不但考虑了离散点电子海图数据,而且也将某些特征数据考虑在内,从而生成相对精度较高的海底地形。海洋中的海流采用两个层次的方法进行模拟:建立海流数据库方法以及水动力软件计算方法。该方法的研究对于AUV自主地形导航技术以及避碰策略等研究具有极为重要的意义,并且上述方法生成的海洋环境已经在AUV数字仿真平台中得到了应用。

One kind of virtual implement method of benthos terrain and current in the ocean environment, which was used to realize AUV visual simulation, is presented. In order to get the more accuracy benthos terrain, not only the discrete electronic chart data but also the fathom lines etc data are considered. The simulation of the current can be adopted as two kinds of approaches: building current database, and calculating hydrokinetics. The research on the methods of ocean environment is of importance in the AUV terrain matching navigation, path planning and obstacle avoidance strategy etc. The results have been applied in the research work of our digital AUV platform.