西南交通大学学报2011，Vol.46Issue(1)：109-114,6.DOI:10.3969/j.issn.0258-2724.2011.01.017
短脉冲高功率微波大气电离与击穿数值分析
Numerical Analyses 0f Air Ionization and Breakdown of Short-Pulse High-Power Microwave
摘要
Abstract
In order to investigate air breakdown caused by short-pulse HPM ( high-power microwave) , the effective electric field, an important parameter for the calculation of ionization parameters, was obtained by solving the electron momentum equation for air. The effect of altitude on the air breakdown thresholds of narrowband and ultra-wideband HPM pulses and the relationship between escaping time or energy and pulse amplitude were given by substituting the effective ionization parameters into and solving the continuity equation of electron density. In addition, the energy transmission of an ultra wideband HPM pulse under the condition of air breakdown was analyzed. The research results show that altitude, pulse width, spectrum distribution and amplitude have a significant impact on the air breakdown.关键词
高功率微波脉冲/窄带/超宽带/击穿阈值/逃逸时间/等效电场分类
数理科学引用本文复制引用
赵朋程,廖成,林文斌,唐涛..短脉冲高功率微波大气电离与击穿数值分析[J].西南交通大学学报,2011,46(1):109-114,6.基金项目
国家自然科学基金资助项目(60771020) （60771020）
