Title :
Adaptive Estimation of Time-Varying Parameters and Its Application to Time-Derivative Tracker
Author :
Wada, Shuhei ; Mitsunaga, Kouichi ; Suemitsu, Haruo ; Matsuo, Takami
Author_Institution :
Dept. of Human Wel. Eng., Oita Univ.
Abstract :
The design of an ideal differentiator is a difficult and a challenging task. In this paper, we propose two adaptive observers for a scalar first-order plant with a time-varying parameter. The update law consists of the gradient-type one and a signum function. Based on the proposed adaptive observers, three time-derivative trackers are given to estimate the derivative of an output signal. The MATLAB simulations are done to demonstrate their performances
Keywords :
adaptive control; control system synthesis; observers; time-varying systems; MATLAB simulation; adaptive estimation; adaptive observer; adaptive update law; differentiator design; scalar first-order plant; signum function; time-derivative tracker; time-varying parameter; Adaptive estimation; Design engineering; Error correction; Humans; Image sequences; MATLAB; Object detection; Position measurement; Time varying systems; Velocity measurement; Differentiator; adaptive observer; adaptive update law;
Conference_Titel :
SICE-ICASE, 2006. International Joint Conference
Conference_Location :
Busan
Print_ISBN :
89-950038-4-7
Electronic_ISBN :
89-950038-5-5
DOI :
10.1109/SICE.2006.315274
