Study on Platform Vibration Simulation Experimental System for Free Space Laser Communication System

The half size hardware-in-the-loop simulation of platform vibration is essential to verify the key technologies of high precision compound axis acquisition/tracking/pointing(ATP)system in free space laser communication.On the basis of analyzing the vibration power spectra of platform,a simulation experimental system was established based on MATLAB/Simulink.The vibration time-domain signals and power spectra of platform were given by the half size hardware-in-the-loop simulation.It was proven in CCD closed loop detection that the simulation result of platform vibration is real and available.The simulation vibration signal of platform was used as an exciting signal of ATP system to accomplish the lab verification of ATP system under the conditions of simulation vibration and movement.