摘要
首先离线设计出具有特定低通特性的滤波器作为闭环系统参考模型 ,然后利用 Daubechies分解 /综合滤波器 ,在线分频段估计系统的传递函数 ,最后利用最小二乘法优化频域目标函数而得到 PID控制器的三个参数 .仿真结果验证了本算法的有效性 .
At first, this paper designs filter which has specific band pass characteristics to serve as reference model of closed loop off line, and then takes advantage of Daubechies analysis/synthesis filter bank to estimate system transfer function by means of band wise approximation on line. Finaly, gets the three parameters of PID controller by way of optimization of target function in frequency domain. The simulation results show the effectiveness of this algorithm.
出处
《南开大学学报（自然科学版）》
CAS
CSCD
北大核心
2000年第2期48-52,共5页
Acta Scientiarum Naturalium Universitatis Nankaiensis
基金
国家 8 63 / CIMS应用基础研究基金!( 863 -51 1 -94 5-0 1 0 )
天津市自然科学基金!( 983 60 2 0 1 1)
关键词
离散小波变换
频域设计
自适应PID控制器
discrete wavelet transformation
Daubechies analysis/synthesis filter bank
discrete Fourier transformation
adaptive PID control
