摘要
提出了一种基于地磁共生矩阵的地磁适配区选择算法。通过对地磁共生矩阵反演出的地磁角二阶矩、地磁对比度、相关性、熵以及逆差矩参数的分析,确定了地磁适配区所对应的截止阈值,并验证了该方法的可行性。
In this paper,an algorithm based on the geomagnetic co-occurrence matrix is given to select the adaptable matching areas.From the co-occurrence matrix,a set of parameters can be acquired,including the geomagnetic angle second moment,contast,correlation,entropy,and the deficit torque.Through the analysis of these parameters,the corresponding threshold can be determined when the areas are appropriate for matching.At last,the method is proved to be feasible through the analysis of experimental results.
出处
《武汉大学学报（信息科学版）》
EI
CSCD
北大核心
2011年第4期446-449,共4页
Geomatics and Information Science of Wuhan University
基金
国家863计划资助项目(2009AA12Z3112007AA12Z326)
国家教育部博士生学术新人奖资助项目(2010)
关键词
水下地磁导航
适配区划分
地磁共生矩阵
underwater geomagnetic matching navigation
identification of the adaptable matching area
geomagnetic co-occurrence matrix
