摘要
闪电、核爆等产生的电磁脉冲具有速度快、峰值高等特点,可利用星载电磁脉冲探测器对其进行采集并进行爆炸定位等研究工作,而电磁脉冲传播到卫星轨道上必然要穿过电离层这一色散介质,使得电磁脉冲的波形发生变化.因此,针对电磁脉冲穿过电离层传播现象,在介绍电离层部分物理参数以及常用电离层模型的基础上,分别综述了电磁脉冲穿过电离层传播理论计算方法以及星地对接、脉冲信号过等离子体的试验结果,最后给出结论.
Electromagnetic pulses generated by lightning and nuclear explosions have the characteristics of fast speed and high peak values.It can be detected by the spaceborne electromagnetic pulse detector and used for research work such as locating explosions.The electromagnetic pulse must pass through the ionosphere which is a sort of dispersive medium,when propagating to the satellite orbit,changing the waveform of the electromagnetic pulse.In view of the phenomenon of electromagnetic pulse propagation through the ionosphere,on the basis of introducing several physical parameters of the ionosphere and commonly used ionospheric models,the theoretical calculation method of electromagnetic pulse propagation through the ionosphere and experiment results of satellite-to-ground docking and electromagnetic pulse passing through plasma are overviewed.
作者
魏雍力
胡淼
曹保锋
李小强
李鹏
WEI Yong-li;HU Miao;CAO Bao-feng;LI Xiao-qiang;LI Peng(Research Institute of Chemical Defense,PLA,Beijing 102205,China;College of Communication Engineering,Hangzhou Dianzi University,Hangzhou Zhejiang 310018,China)
出处
《核电子学与探测技术》
CAS
北大核心
2022年第2期322-327,共6页
Nuclear Electronics & Detection Technology
基金
中国科学院战略性先导专项(XDA17040503)资助。
关键词
电磁脉冲
电离层
等离子体
色散介质
Electromagnetic Pulse
lonosphere
Plasma
Dispersive Medium
