Systems Engineering and Electronics ›› 2026, Vol. 48 ›› Issue (2): 627-637.doi: 10.12305/j.issn.1001-506X.2026.02.23

• Systems Engineering • Previous Articles    

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

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

CLC Number: 

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