摘要
本文以电磁波反射定律与折射定律为基础,建立了电磁波在两种介质分界面处的传播模型,研究了甚低频电磁波在导电媒质中的传播特性,推导了甚低频波在海面及海水中传播的电场表达式,分析了导电媒质对不同频率的电磁波所产生的影响,分析结果表明,甚低频电磁波在海水中的穿透深度较大,能够满足水下通信要求。
Based on the law of reflection and refraction of electromagnetic wave,the propagation model of electromagnetic wave on the boundary of two kinds of media was built up.The propagation characteristics of very low frequency（VLF） electromagnetic wave were studied,the equations of electric field for the VLF wave propagating on and under the seawater were derived,and the effects of conductive media on variable frequency waves were analyzed.The analytic results show that the penetrating depth of VLF electromagnetic wave in seawater is deep enough,and meets the demands of underwater communications.
出处
《微计算机信息》
2012年第2期131-132,85,共3页
Control & Automation
关键词
水下通信
甚低频
导电媒质
穿透深度
underwater communications
VLF
conductive media
penetrating depth
