| 地形相关算法度量值的统计特性 |
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| 引用本文： | 朱华勇,沈林成,常文森.地形相关算法度量值的统计特性[J].国防科技大学学报,1999,21(4):91-95. |
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| 作者姓名： | 朱华勇 沈林成 常文森 |
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| 作者单位： | 国防科技大学自动控制系!长沙410073 |
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| 摘 要： | 考虑到地形相关匹配算法度量值统计特性与二维地形自相关系数的关系，本文提出一种改进的约翰逊方法——相关地形下的匹配算法度量值统计特性分析方法。首先，基于约翰逊方法的问题框架，修改其中基准数据的相邻像元值相互独立的假设，导出了地形相关 Ｍ Ｓ Ｄ 算法度量值的统计分布的解析函数。然后，讨论了约翰逊方法与本文方法的适用性，指出了约翰逊方法的不足之处。最后，给出了本文方法在地形可匹配性分析中的一种应用。
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| 关 键 词： | 相关算法度量 地形相关适配性 虚定位概率 |
| 收稿时间： | 1998/12/24 0:00:00 |
Research on Statistical Properties of Measures of Terrain Correlation Algorithms |
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| Zhu Huayoug,Shen Lincheng and Chang Wensen.Research on Statistical Properties of Measures of Terrain Correlation Algorithms[J].Journal of National University of Defense Technology,1999,21(4):91-95. |
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| Authors: | Zhu Huayoug Shen Lincheng and Chang Wensen |
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| Affiliation: | Department of Automatic Control, NUDT, Changsha , 410073;Department of Automatic Control, NUDT, Changsha , 410073;Department of Automatic Control, NUDT, Changsha , 410073 |
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| Abstract: | Considering the relationship between the measures of terrain correlation algorithms and the 2 D self correlation coefficient of terrain,this paper proposes an improved Johnson method to analyze the statistical properties of measures of matching algorithms on correlated terrain.First,based on the issue of Johnson method,we modify the independence assumption of consecutive elements in reference data and develop distribution functions of measures of MSD.Then,the suitability of Johnson method and our method are discussed,and the shortcomings of the former are pointed out.Finally,an application of our method to terrain correlation suitabitity,to estimate the false fix probability in correlated non matching positions is presented. |
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| Keywords: | measures of correlation algorithms terrain correlation suitable fail fix probability |
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