摘要
采用三角面元拟合目标形体,Z缓冲区算法原理实现遮挡消隐,使用等效电磁流法、物理绕射理论等计算各面元的物理光学场和边缘绕射场,并以体目标的形式计算目标电磁散射总场。最后,通过对某导弹和某坦克近区RCS的计算,得到了近场RCS随方位角变化的计算结果。研究表明,该算法可以实现较满意的精度和准确的电磁散射建模计算,具有较好的实用性。
“Facet-modeling” divisional method and Z-buffer algorithm are used to simulated the shape of complex objects. Physical Tip Diffraction（PTD） and Method of Equivalent Edge Current（EEC） are used to compute the near field Radar Cross Section（RCS） of every facet. The total RCS of object is the vector summation of the RCS of all facets. The RCS of a missile is computed with the algorithm as well as a tank. Results show that the electromagnetic scattering modeling is effective and exact and the algorithm is practicable.
出处
《制导与引信》
2005年第3期47-51,共5页
Guidance & Fuze
基金
兵科院基金项目
