摘要
D-S证据理论是高层数据融合中一种重要的处理不确定性问题的方法。但在使用D-S证据理论处理高冲突信息时,经常得出与直觉相悖的结论。证据理论不能有效处理高冲突证据的特点极大制约了其应用,当前研究主要对原始证据源进行修改。提出了一种基于马氏距离确权的组合方法,通过合理度量冲突大小,对原始证据源进行加权修正。经过数值分析,新的组合方法在应对敌对干扰等突发高冲突时性能得到明显改进。
D-S evidence theory is an important method for dealing with uncertainty in high-level data fusion.However,some counterintuitive conclusions are often acquired in handling highly-conflicting informations with D-S evidence theory.Due to this deficiency,the application of evidence theory is severely restricted,thus the current research aims at modifying the original source of evidence.This paper presents a combination method based on Mahalanobis distance,and the original source of evidence is corrected by properly measuring the conflict size.Numerical analysis indicates that,the new combination method enjoys significant performance improvement in dealing with high-conflict situations.
出处
《通信技术》
2015年第3期278-282,共5页
Communications Technology
基金
国家科技重大专项(No.2014ZX03006-003)~~
关键词
证据理论
证据冲突
马氏距离
evidence theory
conflicting evidence
Mahalanobis distance
