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远程地空通信的超视距通信是一个亟需解决的难题,为此提出一种以分布在多个椭圆轨道面的小卫星为中继的地空超视距通信方案。对小卫星的轨道参数进行设计,证明了用4颗中轨小卫星可以实现对特定区域99.41%的视距覆盖。研究了小卫星地空超视距通信系统的工作原理和链路传播特性,并在此基础上设计了通信链路的收发参数。仿真结果表明:用该系统进行地空超视距通信不受距离的限制,具有通信效果好、抗毁能力强、成本低等优点。
Over-the-horizon communication of long-distance air-to-air communication is an urgent problem to be solved. Therefore, an air-ground over-the-horizon communication scheme relayed by small satellites distributed over multiple elliptical orbit surfaces is proposed. The orbit parameters of the small satellites are designed to prove that 99.41% of the line-of-sight coverage in a specific area can be achieved by using 4 medium-satellites satellites. The working principle and link propagation characteristics of the small satellite ground-to-sky over-the-horizon communication system are studied. Based on this, the design parameters of the communication link are designed. The simulation results show that using this system to carry out land-to-sky over-the-horizon communication is not limited by the distance and has the advantages of good communication effect, strong anti-destruction ability and low cost.