基于全光捕获法的机载激光通信跟踪控制系统设计

Design of airborne laser communication tracking control system based on all-optical acquisition method

摘要:

为了保证机载激光通信的质量和稳定性,基于全光捕获方法优化设计机载激光通信跟踪控制系统。加设激光器、激光告警器和运动转台设备,为全光捕获方法的运行提供硬件支持。改装目标跟踪探测器、跟踪控制器、AD数据转换器和电机驱动器,通过系统供电电路的连接实现硬件系统的优化。根据机载激光通信原理,从发送模块、激光通信接收模块等方面,构建机载激光通信模型。利用全光捕获法生成机载激光通信链路,根据机载激光通信跟踪目标相对信息的计算结果,确定通信光斑中心的位置,实现系统机载激光通信的跟踪和控制功能。通过系统测试实验得出结论：综合室内和外场两个应用环境,机载激光通信跟踪控制系统的平均跟踪偏移量为0.875m,通信误码率和丢包率分别为0.275%和0.384%,均高于预设值。

Abstract:

In order to ensure the quality and stability of airborne laser communication, an airborne laser communication tracking control system is optimally designed based on the all-optical capture method. Add lasers, laser alarms and motion turntable equipment to provide hardware support for the operation of the all-optical capture method. Modify the target tracking detector, tracking controller, AD data converter and motor driver, and realize the optimization of the hardware system through the connection of the system power supply circuit. According to the principle of airborne laser communication, the airborne laser communication model is constructed from the aspects of sending module, laser communication receiving module and so on. The all-optical capture method is used to generate the airborne laser communication link. According to the calculation result of the relative information of the tracking target of the airborne laser communication, the position of the center of the communication spot is determined, and the tracking and control functions of the airborne laser communication of the system are realized. Through the system test experiment, it is concluded that the average tracking offset of the airborne laser communication tracking control system is 0.875m, and the communication bit error rate and packet loss rate are 0.275% and 0.384%, respectively. higher than the preset value.