Aiming at the operational concept of penetrating counterair of the U.S. Air Force， in order to meet the requirements of target analysis of anti penetrating counterair operation， a threat assessment method for penetrating counterair operational aircraft is proposed. According to the characteristics of penetrating counterair operation， the aircraft threat assessment indicators is set up， and a threat assessment indicator system for penetrating counterair operational aircraft is built； based on the analytic hierarchy process， the penetrating counterair operational aircraft threat assessment model is established and the threat ranking of penetrating counterair operational aircraft is obtained. The effectiveness and rationality of the proposed threat assessment method are verified by case calculation， which can provide a basis for target analysis and strategy research of anti penetration counterair operation.

In order to make the operational effectiveness evaluation of the electro-optic countermeasure system closer to the actual battle， according to the characteristics of the electro-optic countermeasure system， the impact of tactical application and personnel operation on the combat effectiveness is considered on the traditional ADC model， and an improved ADC model is proposed， and the model is verified by example to be closer to the actual combat situation than the traditional ADC model. The improved model can provide a scientific basis for the evaluation of the combat effectiveness of the electro-optic countermeasure system.