Application of Wavelet Transform to Process Electromagnetic Pulses from Explosion of Flexible Linear Shaped Charge

摘要

The application of wavelet transform in the analysis of electromagnetic pulses caused by explosion of flexible linear shaped charge (FLSC) is presented. The radiation of electromagnetic pulses was detected during explosion. However, a number of small signals are affected by the complex Electromagnetic environment so that analyzing this kind of electromagnetic radiation is hampered. Therefore, wavelet transform is used to process the measured signals. Result shows the true electromagnetic pulses of explosion can be extracted effectively by the method of wavelet transform. Through FFT analysis, it can be found that the major frequency of electromagnetic radiation caused by explosion of FLSC is below 2MHz.