Title :
Adaptive predictive control based on wavelet approximation models
Author :
Zhihuan, Song ; Ping, Li ; Youxian, Sun
Author_Institution :
Res. Inst. of Ind. Process Control, Zhejiang Univ., Hangzhou, China
Abstract :
Discusses approximate modelling and adaptive control of discrete time linear time-varying systems (LTVS). A novel model, the representation of LTVS in the wavelet time-frequency space, is established based on discrete wavelet transforms. The joint time-frequency properties of wavelet analysis are appropriate for describing the nonstationary characteristic of LTVS. In this model parameter estimation is fulfilled by means of some algebraic calculations. Finally, an adaptive predictive control scheme is proposed based on this representation. Simulation results demonstrate its good behaviour
Keywords :
adaptive control; discrete time systems; linear systems; parameter estimation; predictive control; time-varying systems; wavelet transforms; adaptive predictive control; discrete time linear time-varying systems; discrete wavelet transforms; nonstationary characteristic; parameter estimation; wavelet analysis; wavelet approximation models; wavelet time-frequency space; Adaptive control; Adaptive signal processing; Discrete wavelet transforms; Frequency domain analysis; Predictive control; Predictive models; Programmable control; Signal analysis; Time frequency analysis; Wavelet analysis;
Conference_Titel :
Systems, Man, and Cybernetics, 1996., IEEE International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-3280-6
DOI :
10.1109/ICSMC.1996.571132
