Research into Simulation of Anti-jamming of Anti-ship Missile Radar Seeker Based on Inertial Guidance Information Usage

When anti-ship missiles are effected by centroid jamming during the terminal guidance phase,the tracking error of radar seeker will increase,the tracking direction will be decoyed,which may lead to a serious reduction in missile hit probability.The inertial navigation information has the inherent potential of anti-jamming,and synthetically applying the information of inertial guidance and anti-ship missile radar seeker can effectively confront the centroid jamming.Based on analyzing the principle of centroid jamming,this paper sets up the centroid jamming detection model,the ship,false target,cetroid motion model,as well as anti-ship missile tracking model,and constructs the anti-jamming simulation test system,through system simulation,analyzes the influence of several factors such as ship maneuvering mode,the distance between missile and ship when false target is released,guidance coefficient seeker ratio and signal-to-noise of target echo on missile hit ship probability.