自由空间激光通信平台振动模拟实验系统研究

为了对自由空间激光通信中的高精度、复合轴捕获、跟踪和瞄准(APT)系统的关键技术进行验证，需要对平台的振动或扰动进行半实物仿真。在对通信平台振动功率谱进行分析的基础上，基于MATLAB/Simulink建立了平台振动半实物模拟实验系统，通过半实物仿真得出平台的振动时域信号及其振动功率谱。通过CCD闭环检测，证明了平台振动模拟结果真实有效。将模拟产生的振动信号作为自由空间激光通信复合轴APT实验系统的激励，实现了在模拟振动和运动条件下对复合轴APT跟踪系统的实验室验证。

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 simu?lation 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 CCu 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 move?ment.