Full-ballistic Modeling And Simulation Of Radio Fuzes To Ground Under Interference

Radio fuze is a special device for detecting targets and controling initiation of ammunition by using electromagnetic scattering properties of the target and it has an increasingly important role in modern warfare.In this paper,the whole trajectory modeling and simulation of ground radio fuze under jamming are studied aiming to investigate the virtual realization of the whole process of fuze and to explore the continuous wave doppler radio fuze system electromagnetic environment adaptability.Based on theoretical analysis,mathematical modeling,MATLAB programming and static interference experiment,this paper analyses real-time trajectory simulation technology of ground radio fuze under jamming.The whole process of the trajectory is divided into the trajectory of the projectile,the signal processing system,the construction of the interference signal,the damage effect of the shell and the design of the GUI.(1)The whole trajectory digital system of radio fuze is constructed.The movement trajectory,the damage effect of ground blast shells as well as the trajectory and damage effect of fragments after exploding in air are detailed respectively with theoretical derivation and simulation by mathematical modeling and software programming.(2)Besides the discusion the principle of CW Doppler radio fuze for ground target,the extraction and threshold setting of the feature signals are analysised in detail.The signal processing of CW Doppler radio fuze is simulated by considering the effect of antenna directivity coefficient on the signal under high speed motion condition.(3)Based on the analysis of the digital simulation and static interference experiment,the electromagnetic environment adaptability of CW Doppler radio fuze is discussed in detail.Moreover,the real-time influence of periodic waveform deceptive jamming and the non-periodic waveform suppressed jamming on CW Doppler radio fuze is investigated comprehensively and systematically.