Research On Anti-jamming Algorithm For Infrared Seeker

The infrared seeker can calculate the target location and target motion parameters byusing radiant energy, and offer the missile real-time guidance information. But some widelyused interference methods make the infrared seeker unable to distinguish the real target, theinfrared seeker anti-jamming technology is directly related to the reliability of infrared missile.Therefore, it has important theoretical significance and application value to study theanti-jamming algorithm of the infrared seeker, which can improve the reliability of infraredmissile, and enhance the infrared missile survivability under any interference environment.In this paper, the problems that need to be solved in infrared seeker anti-infraredinterference are analyzed firstly. Neural network expert system for anti-infrared interference isdetermined as the main research direction. The components and working principles of infraredseeker are analyzed systematically, then many infrared jamming methods and correspondinganti-jamming measures are introduced, which lay a good foundation for the followingresearch on anti-jamming algorithms. Widely used anti-jamming algorithms, such aspulse-amplitude time sequence discrimination, kalman filtering algorithm and amplitudeidentification algorithm are further researched, the effectiveness of these methods isdemonstrated in software simulation environment. For a single anti-jamming algorithmmaybe ineffectual under complex interference environment, the solution of the neural networkexpert system for anti-infrared interference is brought out. The feasibility of the solution isverified by using software simulation experiments, then its hardware implementation isresearched, and finally, the semi physical simulation experiments based on GUI and DSP aremade.The experimental results show that the proposed algorithm of neural network expertsystem for anti-infrared interference can effectively deal with complex infrared interference.the GUI interface of neural network expert system for anti-infrared interference is designed todynamically demonstrate its effectiveness.