Evaluating and Sequencing of the Air Target Threat Based on Dempster-Shafer Evidence Theory

It is well known that Dempster-Shafer (D-S) evidence theory can efficiently represent random and fuzzy information and can combine evidence without prior information, which make it used in many fields of information fusion. Based on D-S evidence theory, a new method of formulti-target threat evaluating and sequencing is presented. The concerned problems are defined and formalized using fuzzy sets and fuzzy number. Then Dempster-Shafer evidence theory is applied to combine all the issues, regarded as evidences, in order to derive a compellent result of formulti-target threat evaluating and sequencing. The proposed method change the uncertain problem of formulti-target threat evaluating and sequencing to certain one. The results coincide well with the real-time air situation, and it is very valuable for scientific decision making in air defence operation.