Characteristic of EM-wave anomalous propagation in marine evaporation duct

摘要：

Based on the atmospheric modified refractivity, the difference between the evaporation duct and the standard atmosphere is analyzed. The propagation path and the transmission loss of the EM waves are calculated respectively by ray-tracing technique and Fourier split-step method of the parabolic equation in standard atmosphere and evaporation duct. The simulation results show that evaporation duct can trap some radio rays to extend the propagation distance of EM wave and result in the appearance of radar blind zone. The characteristic of the EM wave anomalous propagation in marine evaporation duct can help to improve the radar over-the-horizon detection performance.

关键词： evaporation duct modified refractivity ray-tracing parabolic equation

作者: Zhao Xiao-long Huang Ji-ying

作者单位: Tianshui Normal Univ.College of Physics and Information Science Tianshui, China Xidian Univ.School of Science Xian, China

会议类型: 国际会议

会议名称: 2009 3rd IEEE International Symposium on Microwave,Antenna,Progagation and EMC Technologies for Wireless Communications(第三届微波、天线、电波传播和EMC技术国际会议

会议地点: 北京

会议语种:英文

页码: 155-158

在线出版日期: 2009-10-27（万方平台首次上网日期，不代表论文的发表时间）