一种关于地磁图适配性分析的综合评价方法(英文)  

Comprehensive evaluation method of geomagnetic map suitability analysis

作　　者：朱占龙[1] 杨功流[1,2] 单友东[3] 杨淑洁[2] 王艳永[2,4] 

机构地区：[1]东南大学仪器科学与工程学院 [2]北京航空航天大学仪器科学与光电工程学院 [3]天津航海仪器研究所 [4]95949部队

出　　处：《中国惯性技术学报》2013年第3期375-380,共6页Journal of Chinese Inertial Technology

基　　金：中央高校基本科研业务费专项资金资助(YWF-10-01-B30)

摘　　要：针对单一指标评价地磁图适配性不全面的缺陷,提出了一种基于多指标融合的综合评价方法。该方法综合考虑标准差、粗糙度、相关系数、熵、累积梯度5个指标。针对传统的模糊评判方法确定指标权重客观性差问题,采用熵技术修正各指标权重,求解出地磁图的综合评价值。利用传统的MSD和MAD匹配算法进行仿真实验,结果表明:该方法得到的评价值能够全面、合理地评价地磁图的适配性,综合评价值越大,匹配概率越高,显示了二者之间良好的一致性。In view of the disadvantage of one-sided evaluation when using single index to evaluate geomagnetic map suitability, a comprehensive evaluation method based on multi-index fusion is proposed. The multi-index such as standard deviation, roughness, correlation coefficient, entropy and cumulative gradient are considered. To overcome the poor objectivity of traditional fuzzy evaluation method when confirming the weight of index, the comprehensive evaluation value is given by using entropy technology to amend the weight. The simulation by matching algorithm of MSD and MAD shows that this method can evaluate the suitability comprehensively and reasonably. Bigger evaluation value can get higher matching probability, which indicate the good consistency between them.

关 键 词：地磁导航 适配性 模糊评判 熵技术 匹配概率 

分 类 号：V249.32[航空宇航科学与技术—飞行器设计]