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A Study Of Single Scattering Of Scatterer At Various Orientation Angles With Equivalence Principle Algorithm, Chan Fai Lum, Hong Tat Ewe, Fu-Xin, Li (Lijun) Jun Jiang
A Study Of Single Scattering Of Scatterer At Various Orientation Angles With Equivalence Principle Algorithm, Chan Fai Lum, Hong Tat Ewe, Fu-Xin, Li (Lijun) Jun Jiang
Electrical and Computer Engineering Faculty Research & Creative Works
It is common that spherical scatterers are used to represent air bubbles or brine inclusions embedded in the snow or sea ice layer. This physical configuration is then solved using radiative transfer theory to obtain backscattering coefficient from the snow or sea ice layer. With the advent of new techniques in computational electromagnetics, the typical theoretical model of single layer of snow or sea ice can be easily extended to consider types of scatterers which are of other shapes or irregular shapes. A computational electromagnetic method based on equivalence principle algorithm can be incorporated into existing theoretical model to calculate …
Performance Enhancement Of Equivalence Principle Algorithm, Xin Fu, Li (Lijun) Jun Jiang, Zu Hui Ma, Shi Quan He
Performance Enhancement Of Equivalence Principle Algorithm, Xin Fu, Li (Lijun) Jun Jiang, Zu Hui Ma, Shi Quan He
Electrical and Computer Engineering Faculty Research & Creative Works
The conventional equivalence principle algorithm (EPA) exploits cubical surfaces to support equivalent sources. However, it introduces strong discontinuities due to sharp edges and corners. In this letter, a spherical surface is employed as the equivalence surface to avoid singularities from nonsmoothness. To achieve better accuracy, the meshless sampling scheme is used for integral operators on the spherical equivalence surface. The numerical examples are provided to validate the performance enhancement of EPA through the proposed method.