SCATTERING FROM ARBITRARILY SHAPED PARTICLES - THEORY AND EXPERIMENT
SCATTERING FROM ARBITRARILY SHAPED PARTICLES - THEORY AND EXPERIMENT
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DOI：
10.1364/ao.30.001141
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发表时间：
1991-03-20
期刊：
影响因子：
1.9
通讯作者：
WANG, RT
中科院分区：
文献类型：
--
作者：
HAGE, JI;GREENBERG, JM;WANG, RT
利用电磁散射的体积积分方程组的数值实现，计算了各种颗粒的散射强度。该数值方法具有计算任意形状非均匀散射体的散射特性的能力。给出了散射体的计算结果，这些散射体不仅具有与入射辐射波长相当的大小，而且还是不规则和不均匀的。将理论结果与在空间天文实验室(ISST)微波设备上进行的微波模拟测量进行了比较。结果表明，实验与理论吻合较好。说明了数值方法和模拟测量方法的准确性和通用性。最后，讨论了数值方法的优缺点。
A numerical implementation of the volume integral equation formulation of electromagnetic scattering is used to calculate the scattered intensity of various particles. The numerical method has the capability of determining the scattering by arbitrarily shaped and inhomogeneous scatterers. Results of calculations are presented for scatterers which have not only a size comparable to the wavelength of the incident radiation but are also irregular and inhomogeneous. The theoretical results are compared to microwave analog measurements performed at the microwave facility of the Space Astronomy Laboratory (ISST). It is found that experiment and theory agree well. The accuracy and versatility of the numerical method and the analog measurements are illustrated. Finally, the advantages and disadvantages of the numerical method are discussed.