Systems Engineering and Electronics ›› 2022, Vol. 44 ›› Issue (4): 1230-1238.doi: 10.12305/j.issn.1001-506X.2022.04.20

• Systems Engineering • Previous Articles     Next Articles

Missile defense target threat assessment based on improved similarity measure and information entropy of IFRS

Yingqi LU, Chengli FAN*, Qiang FU, Xiaowen ZHU, Wei LI   

  1. School of Air And Missile Defense, Air Force Engineering University, Xi'an 710051, China
  • Received:2020-12-31 Online:2022-04-01 Published:2022-04-01
  • Contact: Chengli FAN

Abstract:

The missile defense target threat assessment method based on improved similarity measure and information entropy of intuitionistic fuzzy rough sets(IFRS) is proposed which conquer the problem of low evaluation accuracy caused by ignoring the hesitancy and weight of target attributes. Firstly, by subdividing the hesitancy of IFRS, the improved IFRS similarity model is proposed, and its properties are proved. Secondly, aiming at the problem that the existing information entropy of IFRS is inconsistent with the intuitionistic fact, the information entropy of IFRS based on cosine function is presented to determine the weight of target attributes. Furthermore, the target threat assessment system is constructed and quantified, and the target threat ranking is achieved by comparing the similarity between the attribute values of the threat targets and the ideal solution. Finally, the simulation example shows the feasibility and effectiveness of the proposed method, which can provide a new attempt for the target threat assessment of missile defense operations in uncertain environment.

Key words: intuitionistic fuzzy rough sets, threat assessment, similarity measure, information entropy

CLC Number: 

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