Radar Seeker Complex Anti-Environment Modeling And Simulation Research

As the clairvoyance of missile weapon,the radar seeker is responsible for finding the target.The ability of the seeker to resist environmental interference is facing the great challenge of the deteriorating electromagnetic environment on the battlefield and the continuous improvement of enemy radar jamming te chnology.The research on the anti-jamming technology of seeker makes the seeker better adapt to the complex electromagnetic environment of battlefield,which has great military value and application prospectThis paper takes the radar seeker in the complex electromagnetic environment as the research object to study the modeling and simulation of radar seeker jamming technology.The mathematical model of noise interference is analyzed,including noise frequency modulation interference,noise amplitude modulation interference and noise phase modulation interference.The jamming models of blocking,aiming and sweeping frequency are established.The differences between aiming jamming and blocking jamming in the simulation environment are analyzed,and their alg orithms are combined to realize blocking and sweeping jamming model algorithms,and the correctness of the algorithm is simulated.The working principle and producing conditions of three kinds of active spoofing,namely distance spoofing,velocity spoofing and range-velocity spoofing,are analyzed and studied.Aiming at the linear drag,parabolic drag and hyperbolic drag common in the distance false target drag and velocity false target drag,the interference model is established,the fixed drag and linear drag models are established for the distance velocity drag,and the algorithm implementation of the model is given,and the simulation is carried out.The application time,application process and application conditions of three modes of chaff interference,namely,baffling mode,diluting mode and centroid mode,are analyzed.The constraint conditions on the distance,orientation,height and energy of chaff interference are demonstrated,and the diffusion process,diffusion time and stagnation time of chaff are understood,so as to deduce the theoretical formula of chaff interference.The chaff interference model is established,and the chaff interference model algorithm is implemented,and the correctness of the algorithm is verified by simulation.