确定高空电磁脉冲标准波形参数的频域方法

摘要

通过对数值计算的高空电磁脉冲（HEMP）波形函数拟合，确定了 HEMP标准波形的函数形式。以标准电磁脉冲波形频谱的各频率分量最大值为原则，得到标准波形的幅度谱，利用希尔伯特变换，用频谱相位重建方法获得标准时域波形；最后以部分数据为例，对获得标准参数的频域方法进行了详细讨论。%The equation which defines the HEMP standard waveform was determined by fit-ting and analyzing different HEMP waveforms coming from numerical calculation . The fre-quency spectrum of standard waveform was obtained by enveloping all reasonable physical waveform spectra . According to the Hilbert transform , the standard HEMP waveform pa-rameters were carried out utilizing the signal reconstruction method based on the amplitude spectrum . In this paper , some limited physical data are presented as examples to illustrate the method in detail .