系统工程与电子技术 ›› 2026, Vol. 48 ›› Issue (2): 627-637.doi: 10.12305/j.issn.1001-506X.2026.02.23

• 系统工程 • 上一篇    

基于改进策略的DS证据融合算法

刘科1,*(), 曾行2, 李鑫龙3   

  1. 1. 中国电子科技集团公司第十研究所,四川 成都 610036
    2. 苏州长风航空电子有限公司,江苏 苏州 215151
    3. 武汉第二船舶设计研究所,湖北 武汉 430200
  • 收稿日期:2024-10-17 修回日期:2025-03-29 出版日期:2025-06-11 发布日期:2025-06-11
  • 通讯作者: 刘科 E-mail:liuke14@alumni.nudt.edu.cn
  • 作者简介:曾 行(1990—),男,工程师,硕士,主要研究方向为飞行器设计
    李鑫龙(1996—),男,工程师,硕士,主要研究方向为船舶动力、自动控制、数据挖掘

DS evidence fusion algorithm based on improved strategy

Ke LIU1,*(), Xing ZENG2, Xinlong LI3   

  1. 1. The 10th Research Institute of China Electronics Technology Group Corporation,Chengdu 610036,China
    2. Suzhou Changfeng Avionics Co.,Ltd,Suzhou 215151,China
    3. Wuhan Second Ship Design and Research Institute,Wuhan 430200,China
  • Received:2024-10-17 Revised:2025-03-29 Online:2025-06-11 Published:2025-06-11
  • Contact: Ke LIU E-mail:liuke14@alumni.nudt.edu.cn

摘要:

针对数据融合与决策过程中存在的不确定性问题,尤其是冲突悖论问题,提出基于改进策略的Dempster-Shafer (DS)证据融合算法。算法通过对证据体在约束条件下进行“调增”和“调减”修改,实现证据支持度重新分配,进而支持利用DS证据理论合成公式获得更加可靠、合理、稳定、准确的数据融合结果,同时引入Jensen-Shannon散度概念对算法参数与散度计算结果之间的关系进行量化分析。采用包含全冲突悖论、0信任悖论、1信任悖论、高冲突悖论等在内的8个冲突悖论案例对算法进行仿真分析,明确算法参数取值范围,并与现有多种改进算法进行结果比较。结果表明,当算法调增量取值介于最小概率值的0.775~0.999倍时,算法在最大限度保留原始数据分布特点的基础上能够获得符合人类正常认知的结果。最后,将该算法进一步应用于目标意图推理,该算法能够得到准确的数据融合和推理结果。

关键词: 数据决策, 冲突悖论, 证据理论, 改进策略, Jensen-Shannon散度

Abstract:

Aiming at the uncertainty issues present in data fusion and decision-making processes, particularly the conflict paradox problems, an improved strategy-based Dempster-Shafer (DS) evidence fusion algorithm is proposed. The algorithm achieves the reallocation of evidence support by adjusting the evidence bodies through “increasing” and “decreasing” modifications under constraints. This supports the use of the DS evidence theory synthesis formula to obtain more reliable, reasonable, stable, and accurate data fusion results. Additionally, the concept of Jensen-Shannon divergence is introduced to quantitatively analyze the relationship between algorithm parameters and divergence calculation results. The algorithm is simulated and analyzed using eight conflict paradox cases, including complete conflict paradox, zero trust paradox, one trust paradox, and high conflict paradox, to define the range of algorithm parameters and compare the results with various existing improved algorithms. The results show that when the algorithm’s adjustment increment is between 0.775 to 0.999 times the minimum probability value, the algorithm can achieve results that align with normal human cognition while maximally preserving the characteristics of the original data distribution. The algorithm is further applied to target intention reasoning, where it is able to obtain accurate data fusion and reasoning results.

Key words: data decision-making, conflict paradox, evidence theory, improved strategies, Jensen-Shannon divergence

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