MOESP-type Closed-loop Subspace Model Identification Method

Abstract

In this paper, a MOESP-type closed-loop subspace model identification method is developed. Although external exciting signals and a priori knowledge of a controller in closed-loop are required, the procedure of the proposed method is very similar to the procedures of the existing MOESP methods. Simulation examples are provided to compare the proposed method with some of the existing methods, that is, CCA10), SSARX5) and PO-MOESP4), and demonstrate that the proposed method is capable of identification not only of an ARMAX model but of a Box-Jenkins model.