In airborne radar warning system

radiation threat level determination is very important to implement effective interference power distribution automatically and improve the viability of combat aircraft. For multi-target combat situation faced by modern combat aircraft

use fuzzy math establish threat index model. In the model

the subjective and objective weights of threat index are determined according to analytic hierarchy process and entropy method

using synthetic weighted mark method integrates subjective and objective weight. Finally

based on overall performance requirements of airborne radar warning system

establish radiation source threat level decision function and achieve radiation source threat level determination. It shows through examples the method is able to determine threat level of radiation source effectively.