战术无人机视距下行通信链路信道模型特性的研究  

Model characteristics research of tactical UAV downlink communication transmission

作　　者：邓海峰 申江江 何勰 刘旭宁 吴一 DENG Haifeng;SHEN Jiangjiang;HE Xie;LIU Xuning;WU Yi(The No.91206 Troop of Naval Aviation University,Qingdao 266000,China)

机构地区：[1]海军航空大学91206部队,山东青岛266000

出　　处：《电子设计工程》2021年第17期94-98,共5页Electronic Design Engineering

摘　　要：通过分析战术无人机无线移动信道的传播特点以及信道模型特性研究,得出航空下行传输信道主要受反射分量支配的结论,当反射分量较大时,信道特性接近瑞利信道,反射分量较小时,信道特性接近高斯白噪声信道。通过对实测航空信道参数进行误码性能分析,验证了以上结论。分析结论对于建立准确的战术无人机下行信道模型,提高战术无人机作战使用效能具有重要作用。By analyzing the propagation characteristics of the tactical UAV wireless mobile channel and the channel model characteristics,it is concluded that the aviation downlink transmission channel is mainly dominated by the reflection component.When the reflection component is large,the channel characteristics are close to the Rayleigh channel,and when the reflection component is small,the channel characteristics are close to the Gaussian white noise channel.The above conclusions are verified by analyzing the bit error performance of the measured aviation channel parameters.The analysis conclusion plays an important role in establishing an accurate tactical UAV downlink communication transmission model and improving the operational effectiveness of the tactical UAV.

关 键 词：无人机下行链路 三径模型 莱斯因子 正交频分复用 

分 类 号：TN911.7[电子电信—通信与信息系统]