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ADAPTIVE PID CONTROLLER BASED ON BAND-WISE DESIGN USING WAVELET

Sun Mingwei, Chen Zengqiang, Yuan Zhuzhi (College of Information Technology Science, Nankai University, Tianjin, 300071)  
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.
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