摘要
抛物方程(PE)已经被广泛应用于电波传播预测模型,并成为解决电磁波传播问题的主要工具。针对目前仅有散射传输损耗年中值预测方法,对短期预测的迫切需求,在考虑大气湍流对大气折射指数影响的基础上,结合湍流非相干散射理论,采用PE预测在湍流状态下的散射传输损耗,并与实测数据进行比较。结果表明,应用PE可以较准确地预测出湍流大气环境下的散射传输损耗天中值。
The parabolic equation method is widely used in the electromagnetic wave propagation model and thus becomes the maintool for solving the problem of electromagnetic wave propagation. For the requirement of troposcatter transmission loss in short time,based on incoherent turbulence troposcatter theory,the PE model is used to predict the transmission loss with a random refractive-indexfluctuation,which is compared with real data. The simulation results show that the PE model can exactly predict the daily troposcattertransmission.
出处
《无线电通信技术》
2014年第5期27-29,共3页
Radio Communications Technology
基金
国家部委基金资助项目
