摘要
电离层特性对短波天波通信性能有较大影响,但研究短波天线运用对通信性能影响的文献很少。采用MMANA-GAL软件仿真分析了车载三环天线的性能参数,并结合短波通信链路性能分析软件(简称ITS软件)分析了车载三环天线与鞭天线不同运用时的通信性能比较,结果显示车载三环天线在低频端工作时,高仰角辐射差,大于10MHz后天波高仰角辐射增强,增益随着频率增大明显增大。通信性能分析可知,10 MHz工作时,车载三环天线的近距离(300 km内)通信时接收机可以有更高的信噪比,所以车载三环天线在近距离通信有更好的应用效果。
In this paper,ITS software is used to analyze the performance of HF communication circuit when vehicular three-loop antenna and 10-meter whip antenna are used respectively. The result shows that the performance varies when different antennas are used. The three-loop antenna achieves high-elevation angle radiation under proper frequency,and obtains better signal-to-noise ratio（ SNR） in a distance between 50-300 km,so it has the advantage of overcoming the problem of HF communication blind areas. So,the result shows that the antenna can be selected for better communication performance.
出处
《无线电通信技术》
2016年第2期59-62,共4页
Radio Communications Technology
