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引用本文：

魏永超.基于K-L距离的改进D-S证据合成方法[J].电讯技术，2011，51（1）： - . [点击复制]
WEI Yong-chao.An Improved D-S Evidence Combination Method Based on K-L Distance[J].，2011，51（1）： - . [点击复制]

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基于K-L距离的改进D-S证据合成方法
魏永超
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(中国民用航空飞行学院飞行技术与飞行安全科研基地，四川广汉 618307)

摘要:

提出了一种证据距离为基础的冲突证据合成方法。通过改进的K-L距离得到证据间间距，进一步通过相关算法转化为证据权值，权值反映了证据的重要程度，以权值为系数对原始的基本可信度分配函数进行重新分配，再通过改进的合成公式，得到证据合成结果。最后通过具体的算例比较，说明新方法的合成结果更确定，更符合实际情况。

关键词: 数据融合 D-S理论证据合成 K-L距离权值

DOI：

基金项目:民航局科技项目资助(MHRD200940 & MHRD201024)；中国民航飞行学院博士启动基金资助项目(J2009-45)

An Improved D-S Evidence Combination Method Based on K-L Distance

WEI Yong-chao

(Academy of Flight Technology and Safety,Civil Aviation Flight University of China，Guanghan 618307，China)

Abstract:

A novel conflict evidence combination method based on evidence dista nce is proposed. The distance between evidences is obtained with improve d K-L distance equation, and is further transformed to weight which reflects the impor tance of evidence. According to weights, the basic probabilities are reallocate d, and then are used to get the final combination result by the improved combin ation method. The final comparison example shows that the combination results of new method are determined, and are more accordance with the actual conditions.

Key words: data fusion D-S throry evidence combination K-L distance weight