V/UHF传播计算模型仿真研究  

Simulation of V/UHF Propagation Computing Models

作　　者：平怡 

机构地区：[1]贵州省广播电视大学遵义分校,贵州遵义563300

出　　处：《通信技术》2008年第6期68-70,共3页Communications Technology

摘　　要：V/UHF频段在陆地和航空通信中已得到了广泛的应用。文章利用Matlab仿真平台,对自由空间中、平面大地视距路径与非视距路径上的传播损耗计算模型进行了仿真,分析得出了传播损耗与传播距离、通信频率等的关系;针对地空通信,对接收场强进行了仿真,分析得出了接收场强随发射功率、波长、通信距离、飞机高度和地面天线高度的变化关系。较为全面地仿真分析了V/UHF在陆地和地空通信中的传播特性,研究结果对V/UHF在陆地和地空通信中的应用具有一定的参考价值。V/UHF frequency band is widely used in ground and aeronautical communication. By using Matlab simulation platform, the computing models of propagation loss in free space, line-of-sight in planar ground are simulated, and the relations between propagation loss and propagation distance, communication frequency are educed. And for air-to-ground communication, the received intensity of electric field is simulated and analyzed, and the varying relations with power, the length of wave, communication distance, the height of the plane, the height of the antenna on the ground are discussed. The propagation characteristics of V/UHF in ground and air-to-ground communication simulated and analyzed comprehensively, and the results have some reference value for the application of V/UHF in ground and air-to-ground communication.

关 键 词：超短波 传播损耗 接收场强 计算模型 

分 类 号：TP915[自动化与计算机技术]