基于Matlab的无人机通信信道模型的设计  

Design of UAV Communication Channel Model Based on Matlab

作　　者：夏进 姜子木 王成华[1] 朱秋明[1] Xia Jin;Jiang Zimu;Wang Chenghua;Zhu Qiuming(Nanjing University of Aeronautics&Astronautics,Nanjing 211106,China)

机构地区：[1]南京航空航天大学

出　　处：《航空兵器》2019年第5期69-76,共8页Aero Weaponry

基　　金：国家重大科学仪器设备开发专项(61827801)

摘　　要：电磁波传播的信道环境是复杂多样的,在传输过程中总伴随有路径损耗、阴影效应、多径效应和多普勒效应等,影响电磁波的传输效果。基于无人机通信性能的测试需求和现有SoS信道模型,对信道的功率谱形状与频率、增益间的关系进行分析,得到一种可实现时变衰落特性改进的SoS信道模型,并通过Matlab进行了仿真验证。最后,给出了FPGA实现该改进模型的系统结构。该改进信道模型具有一定的实用价值。The channel environment of electromagnetic wave propagation is complex and diverse,and it is always accompanied by path loss,shadow effect,multipath effect and Doppler effect in the transmission process,which affects the transmission effect of electromagnetic waves.Based on the test requirements of UAV communication performance and the SoS channel model,the relationship among the power spectrum shape,frequency and gain is analyzed,and an improved SoS channel model which can realize time-varying fading characteristic is obtained,which is simulated and verified by Matlab.Finally,the system structure of implementing the improved model by FPGA is given.The improved channel model has certain practical value.

关 键 词：SoS模型 路径损耗 阴影效应 多径效应 多普勒效应 

分 类 号：TN911.6[电子电信—通信与信息系统] V279[电子电信—信息与通信工程]