Title :
A weighted band-wise identification method for multirate sampled-data systems based on wavelet multiresolution analysis
Author :
Lu, Lihua ; Song, Zhihuan ; Li, Ping
Author_Institution :
Inst. of Ind. Process Control, Zhejiang Univ., China
Abstract :
Based on wavelet multiresolution analysis theory, this paper proposes a two-step identification method for multirate sampled-data systems. First the problem of multirate sampled-data consistent reconstruction is studied, then a new weighted band-wise identification method is proposed. This method has the advantages of noise-free, convenient modeling of the interesting band of plant precisely, and easy incorporation with system design. Simulation results are given to illustrate that this two-step identification method is effective and feasible in process modeling
Keywords :
control system analysis; identification; sampled data systems; wavelet transforms; multirate sampled-data systems; process modeling; system design; two-step identification method; wavelet multiresolution analysis; weighted band-wise identification method; Control system synthesis; Frequency; Industrial control; Laboratories; Multiresolution analysis; Open loop systems; Sampling methods; Signal resolution; System analysis and design; Wavelet analysis;
Conference_Titel :
Circuits and Systems, 2000. IEEE APCCAS 2000. The 2000 IEEE Asia-Pacific Conference on
Conference_Location :
Tianjin
Print_ISBN :
0-7803-6253-5
DOI :
10.1109/APCCAS.2000.913629
