超短波远距离山区通信关键技术研究

Key Technologies of Ultrashort Wave Long-distance Mountain Communications

超短波一般通信距离30 km,在山区通信时,通信距离明显下降,严重时导致通信中断。提出利用高性能定向天线技术、大功率技术、网络技术和空中平台等关键技术,实现远距离山区通信的可行性,分析了超短波传播特性和关键技术。对传输性能进行了评估,结果表明:通信距离可达100 km,可以实现单跳大跨度远距离通信;通过这些技术有机结合和综合应用,可以较好地解决超短波山区通信问题。

Ultrashort wave has a general communication distance of 30 km, and the communication distance would decrease in the mountainous areas, thus leading to serious communication interruption. This paper proposes the feasibility in realizing distant communication of mountanous areas with key technologies including high-performance directional antenna technology, high-power technology, network technology and air platform, and discusses ultrashort wave propagation characteristics and key technologies. And the evaluation on transmission performance indicates that the communication distance could be up to 100 km, and that the single-hop large-span long-distance communications thus be realized. Through the organic integration and application of these technologies the problem of Ultrashort wave communications in mountanous areas could be solved.