海上大气波导的抛物方程法分析  

The Analysis on Offshore Atmospheric Duct with Parabolic Equation Method

作　　者：董翠[1] 李立[2] 吴振森[1] 

机构地区：[1]西安电子科技大学理学院,陕西西安70071 [2]西安电子科技大学微电子学院,陕西西安70071

出　　处：《电子科技》2010年第11期91-93,99,共4页Electronic Science and Technology

摘　　要：大气波导是影响电子信息系统的重要环境因素,影响着海上雷达等无线电系统的运作,文中利用抛物方程的离散混合傅里叶变换算法,建立了海上大气波导中电磁波传播路径模式,并对标准大气、蒸发波导和表面波导中的电磁波传播损耗进行比较,结果表明海上大气反常传播可实现低空目标的超视距探测。Atmospheric duct is an important environmental factor affecting electronic information systems and the operation of offshore radars or other wireless systems.In this paper,the electromagnetic wave propagation mode of the offshore atmosphere duct was established using the Discrete Mixed Fourier Transform algorithm for the parabolic equation method,and the propagation loss of electromagnetic wave is compared with that for the case of the standard atmosphere,the evaporation duct and surface duct,the results show that the beyond-horizon detection of low altitude Goals can be accomplished by the abnormal propagation of atmospheric duct.

关 键 词：大气波导 抛物方程 传输损耗 

分 类 号：TN011.3[电子电信—物理电子学]