PE模型预测蒸发波导中电波传播损耗  

Prediction of Electromagnetic Wave Propagation Loss in Evaporation Duct with PE Model

作　　者：王文琰[1] 周新力[2] 肖金光[1] 

机构地区：[1]山东烟台海军航空工程学院研究生管理大队,山东烟台264001 [2]山东烟台海军航空工程学院电子工程系,山东烟台264001

出　　处：《通信技术》2012年第6期64-66,共3页Communications Technology

摘　　要：针对电磁波在蒸发波导中的异常传播现象,研究了电磁波在蒸发波导中的传播损耗,其传播损耗是电波传播的一个重要概念,并受到广泛关注。抛物模型(PE,Parabolic Equation Model)作为目前研究电波传播的主要模型,通过与Two-ray模型的对比分析验证了PE模型的可行性,且PE模型计算电磁波的传播损耗时可以克服其他模型预测粗糙海面时的不足。仿真分析表明,电波在蒸发波导中传播时的损耗值比在标准大气中的损耗值要小。In view of the abnormal phenomenon of electronic wave propagation in evaporation duct, the propagation loss of electromagneti wave in evaporation duct is studied. Propagation loss, as an important concept of the radio wave propagation, always attracts much attention. The comparative analysis with Two-ray model verifies the feasibility of PE（parabolic equation） model, and PE model, as the principal model for the research of radio wave propagation, could overcome the shortcoming of other models in calculating the propagation loss of electromagnetic wave on rough sea surfaces. Simulation analysis indicates that the loss value in evaporation duct is smaller than that in the normal air.

关 键 词：传播损耗 抛物模型 仿真分析 

分 类 号：TN928[电子电信—通信与信息系统]