一种简化的短波信道ITS模型  

A simplified ITS model of high frequency channel

作　　者：李敬军[1] 张曙[1] 

机构地区：[1]哈尔滨工程大学信息与通信工程学院,黑龙江哈尔滨150001

出　　处：《应用科技》2010年第3期26-29,共4页Applied Science and Technology

基　　金：国家基础研究基金资助项目(40106030503)

摘　　要：短波信道的仿真是建立在短波通信系统基础上的.目前公认最好的宽带短波信道模型是ITS信道模型,针对ITS信道模型仿真的复杂性,运用Nakagami函数,对ITS信道模型中的功率延迟剖面函数进行了拟合,得到相对简单的仿真模型.通过对功率延迟剖面分布函数的分析验证以及赤道信道条件下延迟等高线的比对,证明了运用Nakagami函数进行拟合后获得的简化模型的可行性与合理性.The simulation of HF channel is the basis of the HF communication system. Currently, the ITS channel model is recognized as the best wideband HF channel model. Aiming at simplifying the complexity of ITS channel model, a relatively simple simulation model is proposed through the fitting of delay power profile function of ITS channel model by using Nakagami function. According to the analysis and validation of the distribution function of delay power profile function, as well as the comparison of delay contour under conditions of the equatorial channel, the feasibility and rationality of the model which is fitted by Nakagami function is validated.

关 键 词：ITS信道模型 功率延迟剖面函数 Nakagami函数 分布函数 

分 类 号：TN911[电子电信—通信与信息系统]