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首页> 外文期刊>Applied Computational Electromagnetics Society journal >Two Dimensional Frequency-Angle Domain Adaptive Combined Interpolation Method for Electromagnetic Scattering Analysis of Precipitation Particles
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Two Dimensional Frequency-Angle Domain Adaptive Combined Interpolation Method for Electromagnetic Scattering Analysis of Precipitation Particles

机译：二维频角域自适应组合插值方法在降水粒子电磁散射分析中的应用

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摘要

A combined 2-D interpolation method is proposed for the efficient electromagnetic scattering analysis of precipitation particles over a broad frequency and angular band. This method combines the cubic spline interpolation method and the Steor-Bulirsch model. The cubic spline interpolation method is applied to model the induced current over wide angular band. The Steor-Bulirsch model is applied to accelerate calculation over wide frequency band. In order to efficiently compute electromagnetic scattering, sparse-matrix/canonical grid method (SM/CG) is applied to accelerate the matrix vector multiplication in EFIE. Therefore, the calculation time of frequency and angular sweeps become shorter. Numerical results demonstrate that this combined method is efficient for wide-band scattering calculation of precipitation particles with high accuracy.
机译：提出了一种组合式二维插值方法，用于在较宽的频率和角度范围内对降水颗粒进行高效电磁散射分析。该方法结合了三次样条插值方法和Steor-Bulirsch模型。应用三次样条插值法对宽角带上的感应电流进行建模。 Steor-Bulirsch模型用于加速宽频带上的计算。为了有效地计算电磁散射，应用稀疏矩阵/规范网格方法（SM / CG）来加速EFIE中的矩阵矢量乘法。因此，频率和角度扫描的计算时间变得更短。数值结果表明，该组合方法可以高效，高精度地进行降水颗粒的宽带散射计算。

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