Journal of Systems Engineering and Electronics ›› 2009, Vol. 31 ›› Issue (9): 2106-2109.

• 传感器与信号处理 • 上一篇    下一篇

一种解决D-S理论证据冲突的有效方法

白剑林1, 王煜2   

  1. 1. 空军工程大学导弹学院, 陕西, 三原, 713800;
    2. 中国人民解放军93695部队, 河北, 香河, 065400
  • 收稿日期:2008-06-11 修回日期:2008-12-02 出版日期:2009-09-20 发布日期:2010-01-03
  • 作者简介:白剑林(1980- ),男,博士研究生,主要研究方向为信息融合及传感器管理.E-mail:baijianlin_2004@163.com
  • 基金资助:
    国家自然科学基金(60601016)资助课题

Efficient combination approach to conflict evidence for D-S theory

BAI Jian-lin1, WANG Yu2   

  1. 1. The Missile Inst., Air Force Engineering Univ., Sanyuan 713800, China;
    2. Unit 93695 of the PLA, Xianghe 065400, China
  • Received:2008-06-11 Revised:2008-12-02 Online:2009-09-20 Published:2010-01-03

摘要: D-S证据理论是一种有用的不确定性推理方法,由于证据合成公式存在不足,影响了证据理论的应用。针对有效融合高度冲突的证据,提出了一种新的有效加权冲突证据组合方法。该方法通过引入一个证据体距离函数,利用证据之间的相对距离确定了证据的权重,对系统中的证据加权平均后再利用Dempster组合规则实现信息融合。与其他方法比较,该方法在系统存在伪证据(干扰)时仍然能够有效快速地识别出目标,实例表明了该方法的有效性。

Abstract: D-S evidence theory is a useful method for dealing with uncertainty problems,but its application is limited by the shortcomings of combination rules.In order to combine highly conflictive evidence efficiently,a new method based on the distance of the bodies of evidence is proposed.Firstly,a distance function between the bodies of evidence is introduced.Then,the support degree and the credibility of each evidence are obtained.After weighted averaging the evidence in the system,the Dempster combination rule is used to realize information fusion.Compared with the existing methods,the proposed approach is more efficient in combining conflict evidence.Simulation examples show that the validity and rationality of this algorithm.

中图分类号: