Divided diffraction region 绕射分区
Fresnel diffraction region 菲涅耳区
Effective diffraction region 有效衍射区域
Basing on the light diffracting theory of Kirchhoff, we obtain the expression for the intensity of speckles in deep Fresnel diffraction region.
本文利用基尔霍夫近似理论，对菲涅耳极深区相干散斑和部分相干散斑进行了理论研究和计算模拟。
The mathematical models and their limitative condition of radar electromagnetic wave propagated in interference region, intermediate region and diffraction region are set up respectively.
分别建立雷达电磁波在干涉区、中间区和绕射区传播的数学模型和它们适用的边界条件。
The fields in transition and caustic region of dielectric coated objects are obtained by geometric theory of diffraction.
本文应用几何绕射理论对介质覆盖体上过渡区和焦散区的场进行了详细地分析。
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