蚁群PID在高密度光盘系统光学头控制中的应用

Application of ant colony PID in optical head control of high density optical disk system

光学头是高密度光盘系统(DVD)一个关键部件,PID控制是一种经典的DVD光学头控制方式,PID参数是否合理直接影响光学头控制性能,为了提高DVD的光学头控制精度,提出一种蚁群PID的DVD光学头控制算法。采用PID控制器对DVD光学头进行控制,并通过蚁群算法对PID控制参数进行在线性调整和优化,采用VC++对控制性能进行测试。结果证明,本文方法获得良好的DVD光学头的控制效果,具有较好的鲁棒性。

Optical head is a key part of high density optical disk system. PID control is a classical optical head control mode of high density optical disk system, PID parameters directly affect the performance of the optical head control. In order to improve the control precision of high density optical disk system, an optical head control method of high density optical disk system with ant colony PID is proposed. The optical head of high density optical disk system is controlled by PID controller, and the PID control parameters are adjusted and optimized by ant colony algorithm. Fi- nally, the control performance is tested by VC＋＋. The results show that the proposed method has a good control effect on the optical head of high density optical disk system, and it has good robustness.