V/UHF地空通信几何信道模型的仿真研究  

Simulation of V/UHF Air-to-ground Communication Geometric Channel Models

作　　者：郑博[1] 任清华[1] 刘芸江[1] 褚振勇[1] 

机构地区：[1]空军工程大学电讯工程学院,西安710077

出　　处：《弹箭与制导学报》2008年第4期276-278,共3页Journal of Projectiles,Rockets,Missiles and Guidance

基　　金：空军装备研究基金;陕西省自然科学基金(2006F22)资助

摘　　要：分别研究了V/UHF地空通信中理想情况的几何信道模型和现实情况的椭圆几何信道模型,从不同角度较全面地分析了V/UHF地空通信的信道特性。在理想情况的几何信道模型中,对接收点合成场强的计算公式进行了仿真分析,得出了接收场强与发射功率等因素的关系;在现实情况的椭圆几何信道模型中,推导出了地面接收信号的标准多径时延和波达方向的概率密度函数,对标准多径时延、波达方向和接收功率进行了仿真,表明了多径效应对超短波地空通信的影响。The ideal geometric channel model and elliptical channel model of V/UHF air-to-ground communication were studied and simulated respectively, and the characteristics of V/UHF air-to-ground communication channel were analyzed comprehensively from different point of view. For the ideal geometric channel model, the expression of the received total electric field was simulated and analyzed, and the relations between the received total electric field and transmitting power, etc were derived. For the real elliptical channel model, the probability density functions of the normalized multipath delay and DOA of the received signals on the ground were derived, the normalized multipath delay, DOA and the received power were simulated, and the influence of the multipath effect to V/UHF air-to-ground communication was indicated.

关 键 词：V/UHF 地空通信 几何信道模型 多径效应 

分 类 号：TN914[电子电信—通信与信息系统]