【摘要】 通过NURBS曲面和OpenGL技术对目标进行建模和消隐处理 ,结合粗糙面双站散射特性 ,研究了目标对背景红外辐射的散射特性 .结果表明 :目标对 3～ 5 μm波段的背景红外辐射的散射亮度谱分布变化起伏较大 ,在 8～ 12 μm波段对天背景辐射的散射谱分布变化相对平坦 ,而且远大于对阳光辐射的散射亮度 .更多还原

【Abstract】 Based on the geometrical modeling and hidden processing for a complex target as well as the characteristics of bistatic scattering from a rough surface, the scattering of the background IR radiation from an target is studied. It is shown that the spctral distribution of the sky background IR irradiation of scattering from the target in the spectral band of 3～ 5 μm fluctuates greatly, while in the spectral band of 8～ 12 μm it changes not so greatly, and much greater than the spectral distribution of the background of the sun in the spectral band of 3～ 5 μm .更多还原