Simulation modeling and detection performance analysis of space-based infrared early warning system

As an important part of strategic early warning system, missile early warning satellite system is the “eye” of missile defense system. Mastering the performance of us space- based early warning satellite is an important prerequisite and basis for realizing our missile penetration. In this paper, the space-based infrared early warning detection system of the US army is taken as the research background. The relevant data are systematically collected and sorted out, and the orbit distribution model of the system is established. Based on the basic principle of thermal radiation, the infrared radiation model of missile is established. In view of the detection efficiency of the system, the system maximum detection range model, the system detection range model, the system resolution model and the system detection probability model are established respectively through the derivation of the primitive formula, and the relationship between different models and different key parameters of the same model is simulated and analyzed by Matlab. The curve of maximum detection range and global coverage of a single satellite are obtained. At the same time, starting from two methods of qualitative index evaluation and quantitative index evaluation, some index parameters are analyzed in detail, and a relatively perfect index system of early warning performance evaluation is established.