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借助有耗介质板模型研究了伪装遮障材料电磁参数对材料散射、透射和吸收性能的影响,初步得出了材料电磁参数可能选择的范围。采用周期结构模型和Split-Field Periodic FDTD法(基于分裂场的周期结构时域有限差分法)研究了吸收散射型伪装遮障微波散射特性,通过数值计算分析了网孔尺寸、材料电磁参数、入射波频率以及入射角度等因素对伪装遮障电磁散射特性的影响,得出了一些有参考价值的结论。
The effects of electromagnetic parameters of camouflage shielding material on the scattering, transmission and absorption of materials were studied by means of lossy dielectric slab model. The range of possible choices of electromagnetic parameters of the material was initially obtained. The scattering characteristics of absorption-scattering camouflage shelters were studied by the periodic structure model and the Split-Field Periodic FDTD method (based on the finite-difference time-domain finite difference method of split-field periodic structures). The effects of mesh size, material electromagnetic parameters, Wave frequency and angle of incidence on the electromagnetic scattering characteristics of camouflage shelter, and draw some conclusions with reference value.