基于光电伺服系统的复合控制仿真分析

Simulation Analysis of Compound Control Based on Photoelectric Servo System

针对光电系统跟踪目标时,伺服分系统采用传统的反馈控制跟踪精度不足的问题,从控制原理、建模及仿真等方面进行分析,提出采用复合控制的方式提高系统的跟踪精度。实际系统采用滤波预测技术,对合成后的目标位置进行滤波预测并预计出目标的角速度和角加速度。本次仿真利用目标模型直接推导出目标角速度和角加速度,简化了仿真模型。通过仿真结果证明复合控制可以大幅度提高光电跟踪系统的跟踪精度。

For the photoelectric system tracking target and the problem of insufficient tracking accuracy of the electro-optical system when servo subsystem using traditional feedback control, the control principle, modeling and simulation are analyzed, a suggestion that use the compound control method to improve the tracking accuracy of the system is presented in this paper. In the practical system, Using filtering prediction technique to predict the target position after the synthesis and then predicts the angular velocity and angular acceleration of the target. The angular velocity and angular acceleration of target are derived directly from the target model in this simulation which simplified the simulation model. And finally the simulation results show that the compound control can improve the tracking precision of the photoelectric system.