Reconstruction of electromagnetic pulse waveform based on the amplitude spectrum data

xie yan zhao; wang zan ji; wang qun shu; sun bei yun; guo xiao qiang; zhao yu ming

Volume 16 Issue 03

Mar. 2004

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Article Navigation > High Power Laser and Particle Beams > 2004 > 16(03): 0-

huang yin-bo, wang ying-jian. Choosing computing parameters in the numerical simulation of thermal blooming effects[J]. High Power Laser and Particle Beams, 2005, 17.

Citation:

xie yan zhao, wang zan ji, wang qun shu, et al. Reconstruction of electromagnetic pulse waveform based on the amplitude spectrum data[J]. High Power Laser and Particle Beams, 2004, 16.

huang yin-bo, wang ying-jian. Choosing computing parameters in the numerical simulation of thermal blooming effects[J]. High Power Laser and Particle Beams, 2005, 17.

Citation:

xie yan zhao, wang zan ji, wang qun shu, et al. Reconstruction of electromagnetic pulse waveform based on the amplitude spectrum data[J]. High Power Laser and Particle Beams, 2004, 16.

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Reconstruction of electromagnetic pulse waveform based on the amplitude spectrum data

1.
Department of Electrical Engineering,Tsinghua University,Beijing 100084,China;
2.
Northwest Institute of Nuclear Technology,P.O.Box 69,Xi'an 710024,China

Publish Date: 2004-03-15

Abstract

Abstract

Measured CW amplitude spectrum data are often obtained in EMP research, especially in effects experiments and probe calibration. This paper investigates the minimum phase reconstruction of the transient waveform from amplitude spectrum data. This technique involves the use of Hilbert transform, an assumption of minimum phase and cepstrum. The reconstruction of minimum phase signal, such as the HEMP waveform, cosine or sine exponentially damped waveform etc, shows good agreement with the original. For nonminimum phase signal, the total energy, the approximate amplitude and shape of the waveform can be indicated although the rise (fall) time and peak value are different from the original.
- electromagnetic pulse,
- phase retrieval,
- minimum phase,
- cepstrum,
- amplitude spectrum

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