机载无线光通信设备设计及试验验证

The Design and Demonstration of Airborne Laser Communication Equipment

机载无线光通信以其抗电磁干扰特性而备受关注。介绍了一种2.5 Gbps机载无线光通信设备的设计思路,阐述了无信标光捕获跟踪方案,并对其光学伺服稳定系统组成进行分析。利用相距1.5 km的两个六自由度摇摆台搭建了试验验证系统,在强振动飞行平台模拟环境下对设备样机进行外场通信演示,传输图像清晰稳定,误码率低于10-7。测试结果验证了设计思路的可行性。

With unique advantage of anti-interference ability,space laser communication has become the focus of telecommunication field. The design concept of a 2. 5 Gbps airborne wireless optical communication equipment is introduced,the scheme of non-extra-beacon optical acquisition and tracking is described,and the composition of the servo stabilization is analyzed. Finally,a flight simulation experiment system is set up by using two 6-DOF platforms apart from 1. 5 km. In strong vibration simulation environment,the transmission image is clear and stable,and the bit error rate is lower than 10^- 7. The validity of this design concept is demonstrated by the test.