Threat Assessment for Air Defense Operations Based on Intuitionistic Fuzzy Logic

A reasoning system for threat assessment(TA) is investigated based on intuitionistic fuzzy logic(IFL). Much quantitative and qualitative factors can be processed effectively in the system. Firstly, the algorithm for intuitionistic fuzzy inference is introduced. Secondly, on the basis of analyzing the factors on TA in air defense system, the intuitionistic fuzzy inference rules and the defuzzification method are defined. Finally, the validity of the system is checked through simulation results by providing TA instances with 3 typical air targets. The investigation not only enriches the fundamental theory of intuitionistic fuzzy sets(IFSs) but also provide new thoughts for TA. (C) 2011 Published by Elsevier Ltd. Selection and/or peer-review under responsibility of Harbin University of Science and Technology