为了提高地形适配区选择准则的快速性,并有效的减小选择准则对基准误差的敏感性,文中从熵的含义和性质入手,利用地形的高程信息定义地形熵,以此来衡量不同特征的地形所包含的信息量,在此基础上,提出了基于地形熵的适配区选择准则。最后对该准则进行了仿真,仿真结果表明该准则具有较好的效果。

In order to improve the speed of terrain selection algorithm and minimize the sensitivity of the selection rules to reference error, derived from the meaning and property of entropy, the terrain entropy was defined based on the elevation information which was used to weigh the amount of information that the different terrain involved. Based on this, the algorithm of terrain selection based on terrain entropy was introduced. The simulation result shows the algorithm's performance is demonstrated well.