基于灰色决策的地形辅助导航区域选取方法  

Selection criteria for matching area of terrain aided navigation based on gray decision-making

作　　者：谌剑[1] 张静远[1] 李恒[1] 

机构地区：[1]海军工程大学兵器工程系,武汉430033

出　　处：《海军工程大学学报》2012年第5期48-53,共6页Journal of Naval University of Engineering

基　　金：国家部委基金资助项目(1010602010502)

摘　　要：为避免仅利用单一地形特征参量对匹配区域可导航能力评判的不全面性,提出了一种基于灰色决策的多指标综合选取方法。首先,计算待选地形区域的地形标准差、地形熵、粗糙度及地形相关系数等表征地形特征的统计参量;然后,利用计算结果构建地形可导航性指标矩阵,通过无量纲化和归一化去除重叠信息;最后,求解理想决策并将决策向量投影于其上,得到地形可导航性评价。仿真表明:基于灰色决策的匹配区域选取方法能够兼顾不同特征参量所表征的地形固有属性,给出正确评价,且评价结果不受待选区域数目的限制。In order to avoid an incomplete appraisal of navigability in the matching area by using the terrain characteristic parameter alone, a comprehensive multi-index selection criteria based on gray decision-making was developed. Firstly, the standard deviation, entropy, roughness and correlation of optional areas were calculated. Then, the terrain navigability index matrix was constructed and the duplication information was removed using dimensionless normalization. Finally, an ideal decision- making was adopted for determining the navigability of candidate areas. The simulation result shows that the selection criteria based on gray decision-making can give an all-sided appraisal by use of each terrain characteristic parameter and that the method is not restricted by the number of matching areas.

关 键 词：地形辅助导航 匹配区域 地形特征参量 灰色决策 可导航能力 

分 类 号：U666.1[交通运输工程—船舶及航道工程]