强激光与粒子束2016，Vol.28Issue(6)：064104-1-064104-5,5.DOI:10.11884/HPLPB201628.064104
微陀螺滑模控制器中的积分算法设计
Integral algorithm design in sliding mode controller of MEMS gyroscope
摘要
Abstract
In order to remove the undesired DC offset of integral signal,a modified integral algorithm based on the Single Moving Average Method is proposed.In this algorithm,the N samples during one cycle are collected as a set,and the average value of them is calculated as the instantaneous DC offset.Therefore,a pure AC signal without any offset is obtained by subtracting the DC offset from the integral signal.On every rising edge of the clock,a new sampling point is added into the set and the oldest one should be removed.In this way, the length of the set remains constant and the DC offset can be updated in real time.Both the simulation and test results demonstrate the effectiveness of this integral algorithm.This algorithm has been successfully used in the sliding mode controller of a MEMS gyroscope.Compared with the existing integral algorithm,the pro-posed method is less complex,easier to be realized and can achieve better real-time response.关键词
积分算法/直流偏置/微陀螺仪/滑模控制器Key words
integral algorithm/DC offset/MEMS gyroscope/sliding mode controller分类
信息技术与安全科学引用本文复制引用
田颖,陈李,陈丹华,王亚运..微陀螺滑模控制器中的积分算法设计[J].强激光与粒子束,2016,28(6):064104-1-064104-5,5.基金项目
supported by Research Fund for the Doctoral Program of Higher Education of China （20120191120022）；Natural Science Foundation Project of Chongqing Science and Technology Commission （CSTC2012jjA40010）；Laboratory of Precision Manufacturing Technology，CAEP （）
