摘要
利用数字信号处理技术和电磁场理论,研究了圆柱形导体目标对强电磁脉冲波的散射及目标表面上感应电流;仿真了目标对脉冲散射的同极化衰减随时间的变化以及目标上的脉冲电流的时间变化规律。这不仅适用于研究导体目标的脉冲散射特性,而且适用于形状复杂目标的脉冲散射特性研究介质中的脉冲衰减研究,具有算法简便、准确、高效等特点。
The characteristics of scattering and the induced current are investigated for a conductor sphere irradiated by a strong electromagnetic pulse utilizing the digital processing technology and the electromagnetic theory. The variations versus of time of copar-polarization attenuation and the surface pulse current are simulated for the target irradiated by an electromagnetic pulse. The method used is suitable not only for studying the scattering characteristics for the pulse wave, but also suitable for investigating the attenuation in medium and the scattering from other targets with complex shape. The algorithm has the characteristics of simplicity, accuracy and short calculating time.
出处
《咸阳师范学院学报》
2006年第6期12-14,共3页
Journal of Xianyang Normal University
基金
陕西省自然科学基础研究计划项目(2005A10)
陕西省教育厅资助项目(06JK162)
咸阳师范学院教改项目(200501002)
关键词
电磁脉冲
散射
快速付里叶变换
同极化衰减
electromagnetic pulse
scattering
fast Fourier transformation
copar-polarization attenuation.
