Evaluation the effectiveness of the infrared flare with a tactic of dispensing in burst

This study aims to evaluate the effectiveness of infrared (IR) flare against an IR missile with a tactic of dispensing in burst. Firstly, the models of aircraft motion, flare radiation and motion, and missile guidance are described. Secondly, the simulation process is built based on revised guidance loop considering three models, and two criteria to evaluate the effects of flares are given. Lastly, the three-dimensional flight simulations are accomplished. The miss distances due to flare dispensing range at different time intervals are plotted and analyzed. The results show that to achieve effective decoy on IR missile, the flares could be dispensed automatically at an optimum time interval, which is slightly smaller than flare burn time, or dispensed manually in the effective dispensing region at time interval near zero.