Evaluation of EMP shielding effectiveness for metallic shells based on the vector fitting method | |
Guo Jian ; Zou Jun ; He Jinliang ; Zeng Rong | |
2010-05-10 ; 2010-05-10 | |
关键词 | Practical/ electromagnetic pulse electromagnetic shielding Laplace transforms rational functions shells (structures) time-frequency analysis transfer functions/ electromagnetic pulse EMP transient shielding thin metallic shell vector fitting method fast time domain approach arbitrary waveform frequency domain transfer function rational function pulse response inverse Laplace transformation recursive convolution formulation FFT analysis magnetic field computation/ B5230 Electromagnetic compatibility and interference B0290F Interpolation and function approximation (numerical analysis) B0290X Integral transforms in numerical analysis |
中文摘要 | Many EMC problems require evaluation of the transient shielding effectiveness of the thin metallic shells. A fast time domain approach was developed to calculate the transient shielding effectiveness of thin metallic shells excited by an arbitrary waveform electromagnetic pulse. The frequency domain transfer function of the thin metallic shell is fit into a rational function using the vector fitting method, with the pulse response expressed as a sum of decay exponentials in the time domain from the inverse Laplace transformation. The transient shielding effectiveness excited by an arbitrary waveform can be easily obtained based on the recursive convolution formulation. The method is a time domain algorithm that does not require the time-consuming FFT analysis, and the recursive convolution can dramatically improve the calculational efficiency. The proposed approach is validated by numerical examples. |
语种 | 中文 ; 中文 |
出版者 | Tsinghua Univ. Press ; China |
内容类型 | 期刊论文 |
源URL | [http://hdl.handle.net/123456789/22076] |
专题 | 清华大学 |
推荐引用方式 GB/T 7714 | Guo Jian,Zou Jun,He Jinliang,et al. Evaluation of EMP shielding effectiveness for metallic shells based on the vector fitting method[J],2010, 2010. |
APA | Guo Jian,Zou Jun,He Jinliang,&Zeng Rong.(2010).Evaluation of EMP shielding effectiveness for metallic shells based on the vector fitting method.. |
MLA | Guo Jian,et al."Evaluation of EMP shielding effectiveness for metallic shells based on the vector fitting method".(2010). |
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