地空量子通信流程构建及策略分析

针对预警机的地空量子通信问题，首先对影响其传输信道的主要因素进行了分析。基于分析结果，构建一地空量子通信流程，可使地面站与预警机在双向对准和跟踪后进行量子态的无线传输；基于该通信流程搭建一地空量子广域网，网络由空中平台和地面通信端等设备组成，根据不同的通信节点剖析3种路由策略，验证其可行性；最后对量子比特传输错误率进行分析，仿真结果表明通过提高信道系数，缩小测量基的偏差角度以及减少纠缠交换、经典信息引起的差错率，可有效减小传输的误码率。

An Analysis of the Process Construction of Air-to-Ground Quantum Communication and Analysis of Routing Strategy

In view of air to ground quantum communication of the AEW platform, in this paper, the main factors influencing transmission channel are analyzed. On the basis, a process of air to ground quantum is constructed to facilitate two way pointing and tracking, and then to fulfill the transmission of quantum bits. A quantum wide area network can be established based on this communication process, which is composed of multiple air platforms, ground stations and etc. Three kinds of routing strategies are proposed, and then analyzed based on the different communication nodes, and its feasibility is verified. Finally, the quantum bit error rate of the transmission is analyzed. The simulation results show that the improvement of channel coefficient, the reduction in the deviation angle of measurement based, error caused by entanglement swapping and classical information can result in a decrease of the transmission error rate.