Title :
Frequency domain approach to closed-loop identification based on output inter-sampling scheme
Author :
Sun, Lianming ; Ohmori, Hiromitsu ; Sano, Akira
Author_Institution :
Dept. of Syst. Design Eng., Keio Univ., Yokohama, Japan
Abstract :
A novel frequency domain closed-loop identification algorithm is proposed using the output inter-sampling scheme. It is illustrated that the inter-sampled plant output has cyclo-stationary property that can be used to eliminate the correlation between the plant input and output noise even though no persistently exciting test signal is available. It can be applied for the unstable plant identification problem, and can be extended to the situation where the output disturbance noise is colored. An experiment of magnetic suspension system is performed to demonstrate the effectiveness of the proposed approach
Keywords :
closed loop systems; discrete time systems; frequency-domain analysis; identification; magnetic bearings; sampled data systems; closed loop systems; continuous time systems; discrete time systems; frequency domain analysis; identification; linear systems; magentic suspension system; Colored noise; Design engineering; Frequency domain analysis; Frequency estimation; Gaussian noise; Magnetic noise; Open loop systems; Signal processing; Sun; Testing;
Conference_Titel :
American Control Conference, 2000. Proceedings of the 2000
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-5519-9
DOI :
10.1109/ACC.2000.879512
