摘要
提出一种基于瞬时水深模型的最短时间航线自动生成算法。基于海图静态水深和海域潮位模型,构建瞬时水深模型,动态提取碍航区,并进行航线可行性分析;利用动态规划思想,进行最短时间路径搜索;采用矩形包络分析、相近节点搜索和冗余点删除等策略,进行航线优化。实验表明:本算法能动态分析航线可行性,搜索最短时间航线。与传统算法相比,所提算法可提取航行时间更短的航线,所提取的最短时间航线,与舰船航行的起始时间和舰船航速相关。
A method for the shortest time routing based on an instantaneous depth model is proposed.Firstly,an instantaneous model is constructed based on static depths in a chart and a tidal model in a sea area,then obstacles are acquired and the navigability of a route is analyzed.Secondly,the shortest time path is searched using a dynamic programming method.Finally,the path is optimized by the strategies including excluding obstacles outside the rectangle border of all nodes,searching close nodes in next stage and deleting redundant nodes for a more direct navigation.Experimental results demonstrate：① the proposed method can analyze the navigability of the routes dynamically and acquire the shortest time route;② the route acquired by the proposed method has the shortest time than that by the traditional methods;③ the shortest route depends on the start time of navigation and the ship speed.
出处
《测绘学报》
EI
CSCD
北大核心
2010年第5期516-521,共6页
Acta Geodaetica et Cartographica Sinica
基金
国家863计划(2009AA12Z202)
国家自然科学基金(40801189
40801158)
中国博士后科学基金(20080430547)
关键词
瞬时水深模型
最短时间航线
航线分析
instantaneous depth model
the shortest time route
route analysis
