分析了自适应光学控制系统中闭环带宽与对湍流校正的有效带宽的关系,比较了采用比例积分控制和纯滞后补偿控制的自适应光学控制系统的带宽。分析结果认为自适应光学控制系统应当具有较高的有效带宽,较低的闭环带宽,系统中的时间延迟是限制自适应光学控制系统有效带宽的主要因素。

The relationship between the effective bandwidth and the close bandwidth in adaptive optics (AO) control systems is discussed. The bandwidth of an adaptive optics control system is cpmpared with PI controller or pure time delay compensative controller too. The conclusion is that the time delay in AO system is the limitation of Bandwidth, and an AO control system should have higher Effective Bandwidth and lower Close Bandwidth.