激光驾束制导仪光信息场模拟测试技术

Laser information field simulation & test system for laser beam riding guidance

通过对激光驾束制导原理的分析,设计了一套激光驾束制导信息光场的模拟发射和接收系统;模拟发射系统采用可编程器件(FPGA)实现,通过按键输入的仿真制导指令通过一系列逻辑处理后输出为符合光信息场调制规律的电脉冲信号,通过该信号对激光器进行调制,从而获得特定的光信息场;模拟接收部分采用PIN光电管作为探测器,接收模拟发射系统的特定调制光信息,并对该信息进行放大整形,获得与发射端相同的调制电脉冲信息,供试验测试研究。该系统实现了与激光驾束制导光场信息规律一致的电脉冲信号的调制发射和接收,有效地模拟了激光驾束制导的光场信息,从而为试验研究激光驾束制导武器系统的光信息场的各种特性、接收系统的特性以及制导系统的偏航和俯仰控制精度等参数的室内非接触仿真测试提供了一个有效的方案。

A set of laser field information sending and receiving system has been designed on the basis of analyzing the principle of laser beam riding guidance.It realizes the pulse modulation and demodulation which simulate the laser filed information in practical guidance system.The system is designed and developed based on the filed program gate array（FPGA）.The simulating guidance instructions which are input with the keyboard are processed by a series of logic in the FPGA.The corresponding electronic pulse signals are output which drive the laser to simulate the modulated optical information fields for beam riding guidance.Then a PIN photodiode is used as the detecting device to receive the optical information emitted by the light emission system.The electronic signal outputted by photodiode are amplified and shaped by the circuit of receive system,and then the laser information field is obtained.The system can be used in the simulation and test of laser beam riding guidance.