Abstract:

In order to conduct air target identification of friend or foe under complex battle circumstances, an integrated identification method based on the combination of Dempster-Shafer (DS) evidence theory and intuitionistic fuzzy sets (DST-IFS) is proposed with consideration of information credibility. Firstly, the problem of integrated air target identification of friend or foe is analyzed, and the integrated identification process is proposed. Secondly, aiming at solving the problem of uncertainty enlargement induced by the transformation from DS functions to IFS, a credit assignment method is proposed to determine membership degree and non-membership degree in IFS. Meanwhile, the adaptability and effectiveness of the credit assignment method is validated by case studies. Thirdly, the steps of DST-IFS decisionmaking approach based on TOPSIS (technique for order preference by similarity to ideal solution) are given. On this basis, an integrated identification of friend or foe method based on DST-IFS is proposed. Finally, the integrated identification of friend or foe method proposed is proved to be feasible via example analysis.