信息与控制2018，Vol.47Issue(6)：751-754,761,5.DOI:10.13976/j.cnki.xk.2018.7323
快速反正切跟踪微分器在稳定平台中的应用
Application of Rapid Arctangent-based Tracking Differentiator to Stable Platform
摘要
Abstract
To improve the tracking precision of the photoelectric servo-stabilized platform, we propose a compound control strategy based on disturbance compensation and digital feed-forward control to resolve the influence of disturbances. We use a disturbance observer to estimate and effectively compensate for system interference.Using a fast arctangent-based tracking differentiator to construct a digital feed-forward control, this continuous function method combines linear and nonlinear approaches to facilitate rapid and stable system convergence, so that the chattering phenomenon near the equilibrium point is suppressed, the tracking ability of the system is enhanced, and noise is effectively suppressed. The experimental results indicate that this control strategy can ensure the tracking accuracy of a photoelectric tracking system for moving targets. In addition, tracking error is reduced from 0.070° to less than 0.044°, and the robustness of the system is enhanced.关键词
稳定平台/数字前馈/跟踪微分器/复合控制/反正切函数Key words
stabilized platform/digital feedforward/tracking differentiator/compound control/arctangent function分类
信息技术与安全科学引用本文复制引用
任彦,牛志强,赵冠华..快速反正切跟踪微分器在稳定平台中的应用[J].信息与控制,2018,47(6):751-754,761,5.基金项目
国家自然科学基金资助项目(61563041) （61563041）
内蒙古自治区自然科学基金资助项目(2015MS0603) （2015MS0603）
