海上蒸发波导条件下电磁波传播损耗实验研究  

Experiment study of electromagnetic wave propagation loss in oceanic evaporation duct

作　　者：刘爱国[1] 察豪[1] 

机构地区：[1]海军工程大学海洋电磁环境研究所,湖北武汉430033

出　　处：《电波科学学报》2008年第6期1199-1203,共5页Chinese Journal of Radio Science

摘　　要：海上舰载雷达系统受蒸发波导的影响,经常会出现超视距探测现象,其超视距探测效能的发挥基于海面蒸发波导环境下电磁波的传播规律。介绍了2007年1月份和5月份在我国东南沿海海域开展的海上电磁波传播损耗测量实验,并将实验测量结果与基于抛物方程的电磁波传播损耗计算模型的计算结果进行了分析和比较,结果表明:电磁波传播模型传播损耗理论预测值偏小,对理论模型的计算结果偏小的原因作了分析。Oceanic evaporation ducts have an important effect on shipborne radar system and frequently make it over-the-horizon detection. The law of electromagnetic wave propagation in the marine is the base of evaluating the over-the-horizon performance of shipborne radar system. The experiments of marine electromagnetic wave propagation loss measurements described here had been done at the south-east coastal area in January and May 2007. The experimental measurements were compared with the predictions of electromagnetic wave propagation model based on the parabolic equation. The result shows that the prediction loss of theory model is smaller than the measured loss, and the reason was analyzed in this paper.

关 键 词：蒸发波导 抛物方程 传播损耗 电波传播 

分 类 号：TN011[电子电信—物理电子学]