TY - GEN
T1 - Adaptive control with unknown parameters in reference input
AU - Cao, Chengyu
AU - Wang, Jiang
AU - Hovakimyan, Naira
PY - 2005
Y1 - 2005
N2 - In this paper, Model Reference Adaptive Control problem is considered with reference input dependent upon the unknown parameters of the system. Due to the uncertainty in the reference input, conventional linear-in-parameters adaptive controller cannot achieve the control objective without enforcing persistent excitation (PE). A new technique is presented for introducing an excitation signal and regulating its magnitude, dependent upon the convergence of the output tracking and parameter errors. Intelligent excitation ensures parameter convergence similar to conventional PE, but initiates only when necessary. As a result, the regulated output tracks the unknown reference input. Simulations illustrate the theoretical findings.
AB - In this paper, Model Reference Adaptive Control problem is considered with reference input dependent upon the unknown parameters of the system. Due to the uncertainty in the reference input, conventional linear-in-parameters adaptive controller cannot achieve the control objective without enforcing persistent excitation (PE). A new technique is presented for introducing an excitation signal and regulating its magnitude, dependent upon the convergence of the output tracking and parameter errors. Intelligent excitation ensures parameter convergence similar to conventional PE, but initiates only when necessary. As a result, the regulated output tracks the unknown reference input. Simulations illustrate the theoretical findings.
UR - http://www.scopus.com/inward/record.url?scp=33745218358&partnerID=8YFLogxK
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U2 - 10.1109/.2005.1467019
DO - 10.1109/.2005.1467019
M3 - Conference contribution
AN - SCOPUS:33745218358
SN - 0780389360
SN - 9780780389366
T3 - Proceedings of the 20th IEEE International Symposium on Intelligent Control, ISIC '05 and the 13th Mediterranean Conference on Control and Automation, MED '05
SP - 225
EP - 230
BT - Proceedings of the 20th IEEE International Symposium on Intelligent Control, ISIC '05 and the 13th Mediterranean Conference on Control and Automation, MED '05
T2 - 20th IEEE International Symposium on Intelligent Control, ISIC '05 and the13th Mediterranean Conference on Control and Automation, MED '05
Y2 - 27 June 2005 through 29 June 2005
ER -