Identification of continuous-time hybrid "Box–Jenkins" systems with multiple unknown time delays using two-stage parameter estimation algorithm. Issue 6 (8th July 2019)

• Record Type: Journal Article
• Authors: Ghoul, Yamna
• Is Part Of: Engineering computations. Volume 36:Issue 6(2019)
• Page Start: 2111
• Page End: 2130
• Publication Date: 2019-07-08
• Subjects: Box–Jenkins systems -- Continuous time -- Multiple unknown time delays -- Recursive identification -- Two-stage identification algorithm; Computer-aided engineering -- Periodicals; Computer graphics -- Periodicals; 620.00285
• DOI: 10.1108/EC-12-2018-0550
• Languages: English
• ISSNs: 0264-4401

Abstract

Abstract : Purpose: This study/paper aims to present a separable identification algorithm for a multiple input single output (MISO) continuous time (CT) hybrid "Box–Jenkins". Design/methodology/approach: This paper proposes an optimal method for the identification of MISO CT hybrid "Box–Jenkins" systems with unknown time delays by using the two-stage recursive least-square (TS-RLS) identification algorithm. Findings: The effectiveness of the proposed scheme is shown with application to a simulation example. Originality/value: A two-stage recursive least-square identification method is developed for multiple input single output continuous time hybrid "Box–Jenkins" system with multiple unknown time delays from sampled data. The proposed technique allows the division of the global CT hybrid "Box–Jenkins" system into two fictitious subsystems: the first one contains the parameters of the system model, including the multiple unknown time delays, and the second contains the parameters of the noise model. Then the TS-RLS identification algorithm can be applied easily to estimate all the parameters of the studied system.