Systems Engineering and Electronics ›› 2022, Vol. 44 ›› Issue (7): 2201-2210.doi: 10.12305/j.issn.1001-506X.2022.07.16

• Systems Engineering • Previous Articles     Next Articles

Combat task decomposition EVA method based on binary constraints of task subject

Qian LIU*, Yunjun LU, Kebin CHEN, Mengyao HAN, Liang GUO   

  1. College of Information and Communication, National University of Defense Technology, Wuhan 430010, China
  • Received:2021-05-28 Online:2022-06-22 Published:2022-06-28
  • Contact: Qian LIU

Abstract:

Aiming at the arbitrariness and uncertainty in the decomposition of complex combat tasks, a extraction-verification-adjustment (EVA) task decomposition method is proposed, which is formed by the extraction, verification, and adjustment of the sub task set, considering the binary constraints such as the capability attributes and structural characteristics of the task subject. First, the global task space is constructed, and the subtask set extraction method based on task matching is proposed. Secondly, according to the binary constraints of the task subject's ability attributes and structural characteristics, a quantitative adjustment model of subtask sets is established. By improving the elitist retention strategy and introducing task decomposition granularity and the dynamic adjustment strategy of crossover mutation probability, the improved non-dominated sorting genetic algorithm-Ⅱ (INSGA-Ⅱ) algorithm is proposed. Finally, the simulation results verify that INSGA-Ⅱ has the advantages of diversity, convergence in solution set and timeliness performance compared with the traditional optimization algorithms. The results show that the method proposed in this paper enable decision makers to adjust and control the task decomposition results according to the actual situation of the task subject, and overcome the problem that the traditional methods rely on subjective experience and ignore the constraints of the ability attributes and structural characteristics of the task subject.

Key words: combat task decomposition, task subject, binary constraints, extraction-verification-adjustment (EVA) method, multi-objective optimization, task descomposition

CLC Number: 

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