摘要
针对二阶非线性离散跟踪微分器的跟踪和滤波参数、正弦输入信号幅值和频率、正弦输出信号幅值及采样时间之间的关系进行了研究。利用Matlab工具,得到了这些参数之间的近似函数方程,并给出了统一形式的表达式。研究结果对跟踪微分器参数的选择及进一步应用具有重要价值。
The relation among the tracking and filtering parameters of the nonlinear second - order discrete - time Tracking - Differentiator, and amplitude and frequency of its sinusoidal input - output signals and sample time was studied extensively. Relation equations of these parameters were obtained approximately by Matlab. A general expression was presented finally. Numerical simulation showed the effectiveness of the approximate equations. It is of great importance to select the parameters of Tracking - Differentiator and to apply it to practice further.
出处
《电机与控制学报》
EI
CSCD
北大核心
2005年第4期376-379,383,共5页
Electric Machines and Control
基金
国防科工委"十五"计划重点预研项目(11303010203)
关键词
自抗扰控制器
跟踪微分器
离散系统
输入输出特性
幅频特性
active disturbance rejection controller
tracking - differentiator
discrete - time systems
in- put-output characteristic
amplitude -frequency characteristic
