光学振动半实物仿真系统设计

给出一种光学振动半实物仿真系统的设计方法.光学振动半实物仿真系统进行了星载激光发射系统的光学振动试验.设计根据欧空局的SILEX平台振动特性滤波器传递函数;把高斯白噪声作为滤波器的输入,滤波器的输出就是模拟生成的平台振动时域信号;通过基于Matlab的Real-time Workshop,把平台振动模拟系统的滤波器模型转换成实时模拟程序.模拟程序生成的振动信号分别输出给两个摆镜,通过摆镜摆动来模拟平台振动对光束的影响.能实现对平台振动的全频谱域模拟,提高模拟的质量和可靠性.

Design of Hardware-in-the-loop Optical Simulation System of Vibration

This text introduces the design method of a hardware-in-theloop optical simulation system of vibration.The hardware-in-the-loop optical simulation system of vibration imitates the vibration experiment of satellite borne laser system.It designed the transfer function of a filter according to power spectral density data of platform vibration of SILEX(Semiconductor Inter-satellite Laser Experiment).It input a Gaussian white noise into the filter,and the output of the filter was the simulating signal of platform vibration.Based on the Real-time Workshop of Matlab,the filter model of platform vibration was transformed to real-time program of simulation.The signals of platform vibration generated by the program were output to two steering mirrors respectively,and the effect of platform vibration on laser beam was simulated by the steering of the two mirrors.The method can realize the simulation of whole spectral domain,and the quality and reliability of simulation were enhanced.