An Indirect Method for Closed-Loop System Identification
نویسندگان
چکیده
منابع مشابه
A virtual closed loop method for closed loop identification
Indirect methods for identification of linear plant models on the basis of closed-loop data are based on the use of (reconstructed) input signals that are uncorrelated with the noise. This generally requires exact (linear) controller knowledge. On the other hand, direct identification requires exact plant and noise modelling (system in the model set) in order to achieve accurate results, althou...
متن کاملSubspace-based optimal IV method for closed-loop system identification
This paper deals with an optimal instrumental variable method dedicated to subspace-based closed-loop system identification. The presented solution is based on the MOESP technique but requires to modify the original scheme by proposing a new PO MOESP method which uses reconstructed past input and past output data as instrumental variables. The developed approach is then illustrated via a simula...
متن کاملA refined IV method for closed-loop system identification
This paper describes an optimal instrumental variable method for identifying discrete-time transfer function models of the Box-Jenkins transfer function form in the closed-loop situation. This method is based on the Refined Instrumental Variable (RIV) algorithm which, because of an appropriate choice of particular design variables, achieves minimum variance estimation of the model parameters. T...
متن کاملClosed loop Identification of Quadruple Tank System using an Improved Indirect Approach
The well known, indirect method of closed loop identification is difficult to apply for multivariable systems owing to its two step procedure of first identifying the loop sensitivities which are then used in the second step to estimate the plant dynamics. In this paper, we propose an improved indirect method of closed loop identification that exploits (i) simple proportional output feedback co...
متن کاملClosed-loop Robust Identification Using the Indirect Approach
In the previous paper (Pupeikis, 2000) the problem of closed-loop robust identification using the direct approach in the presence of outliers in observations have been considered. The aim of the given paper is a development of the indirect approach used for the estimation of parameters of a closed-loop discrete-time dynamic system in the case of additive correlated noise with outliers contamina...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Proceedings of the ISCIE International Symposium on Stochastic Systems Theory and its Applications
سال: 2003
ISSN: 2188-4730,2188-4749
DOI: 10.5687/sss.2003.160