弹道中段碎片诱饵的数字仿真建模及分析OA

Debris clouds generated by ballistic missiles in the midcourse phase pose a significant challenge to target recognition for anti-missile systems.To effectively evaluate the radar scattering characteristics of these debris decoys,this paper proposes an integrated simulation method that combines geometric discretization,dynamics evolution,and Electromagnetic scattering.The method first discretizes the missile shell structure into triangular facets.Subsequently,it combines an improved Gurney initial velocity model with dynamics iteration based on Rodrigues'rotation transformation to simulate the spatio-temporal evolution process of the debris cloud after explosion.The fast iterative shooting and bouncing ray method is employed to calculate the electromagnetic scattering of the time-varying quasi-static debris cloud model on this basis.The simulation analyzes the time-varying characteristics of the radar cross section,the energy diffusion features of the High-Resolution Range Profile,and the angular scattering characteristics of the debris cloud at different grazing angles.The results show that the proposed model can effectively simulate the diffusion process of the debris and its complex scattering fluctuations,which are sensitive to angle and time.This research provides a feasible digital simulation solution for the characteristic analysis of ballistic midcourse debris decoys and the effectiveness evaluation of anti-missile systems.