基于地磁共生矩阵的水下地磁导航适配区选择

Study on the Selection of the Geomagnetic Adaptable Matching Area Based on the Geomagnetic Co-occurrence Matrix

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.