基于多重分形分析的核爆与雷电电磁脉冲识别

PDF(1074 KB)

振动与冲击 ›› 2013, Vol. 32 ›› Issue (7) : 8-10.

论文

基于多重分形分析的核爆与雷电电磁脉冲识别

祁树锋，李夕海，韩绍卿，冯军, 陈蛟，刘代志

作者信息 +

Discrimination of Nuclear Explosion and Lightning Electromagnetic Pulse Using Multi-fractals Analysis

QI Shu-Feng, LI Xi-Hai, Han SHAO-Qing, FENG Jun, CHENG Jiao,
LIU Dai-Zhi

Author information +

文章历史 +

摘要

根据核爆和雷电电磁脉冲信号非平稳、非线性特点，对NMEP和LEMP信号进行了多重分形分析，计算了二者的多重分形广义维数和广义维数的变化率，通过分析发现，广义维数的变化率更能反映核爆和雷电的不同产生机理，并且和广义维数相比，以广义维数的变化率作为特征，对NEMP和LEMP的识别率更高，更稳定，可以对核爆和雷电电磁脉冲进行有效的识别。

Abstract

In this paper, the discrimination of nuclear explosion and lightning electromagnetic pulse is studied using multi-fractals analysis for EMP signal having nonstationary and nonlinear characteristics. The multi-fractals general dimension and the variation ratio of of nuclear explosion and lightning electromagnetic pulse are calculated. Through analysis it is founded that the rate of change of general dimension is more reflection the difference mechanism of nuclear explosion and lightning, compared with general dimension; and the discrimination of NEMP and LEMP based on the rate of change of general dimension is higher and more stability than that based on general dimension.

导出引用

祁树锋;李夕海;韩绍卿;冯军;陈蛟;刘代志. 基于多重分形分析的核爆与雷电电磁脉冲识别[J]. 振动与冲击, 2013, 32(7): 8-10

QI Shu-Feng;LI Xi-Hai;Han SHAO-Qing;FENG Jun;CHENG Jiao;LIU Dai-Zhi . Discrimination of Nuclear Explosion and Lightning Electromagnetic Pulse Using Multi-fractals Analysis[J]. Journal of Vibration and Shock, 2013, 32(7): 8-10