| 基于地磁共生矩阵的水下地磁导航适配区选择 |
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| 引用本文： | 赵建虎,王胜平,王爱学.基于地磁共生矩阵的水下地磁导航适配区选择[J].武汉大学学报(信息科学版),2011(4):446-449. |
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| 作者姓名： | 赵建虎 王胜平 王爱学 |
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| 作者单位： | 武汉大学测绘学院;武汉大学卫星导航定位技术研究中心 |
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| 基金项目： | 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) |
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| 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。
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| 关 键 词： | 水下地磁导航 适配区划分 地磁共生矩阵 |
Study on the Selection of the Geomagnetic Adaptable Matching Area Based on the Geomagnetic Co-occurrence Matrix |
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| ZHAO Jianhu,WANG Shengping,WANG Aixue.Study on the Selection of the Geomagnetic Adaptable Matching Area Based on the Geomagnetic Co-occurrence Matrix[J].Geomatics and Information Science of Wuhan University,2011(4):446-449. |
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| Authors: | ZHAO Jianhu WANG Shengping WANG Aixue |
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| Affiliation: | 1(1 School of Geodesy and Geomatics,Wuhan University,129 Luoyu Road,Wuhan 430079,China)(2 Research Center of GNSS,Wuhan University,129 Luoyu Road,Wuhan 430079,China) |
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| Abstract: | 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. |
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| Keywords: | underwater geomagnetic matching navigation identification of the adaptable matching area geomagnetic co-occurrence matrix |
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