Please use this identifier to cite or link to this item:
Title: Frequency domain identification of transfer function model of a disk drive actuator
Authors: Al Mamun, A. 
Lee, T.H. 
Low, T.S. 
Keywords: Frequency domain identification
Hard disk drive actuator
Least-square estimator
Issue Date: May-2002
Citation: Al Mamun, A., Lee, T.H., Low, T.S. (2002-05). Frequency domain identification of transfer function model of a disk drive actuator. Mechatronics 12 (4) : 563-574. ScholarBank@NUS Repository.
Abstract: In this paper, we present a method of identifying the transfer function model of a linear time-invariant (LTI) dynamic system from its frequency response data. The presented algorithm is based on the principle of least-square fit on the complex plane. It fits the frequency response data to the response of a transfer function model, minimizing the sum of square of residual errors. Thus a transfer function model is extracted from the measurement of the frequency response at a discrete set of frequencies. We select the order of the transfer function model through the interpretation of the cost functions obtained from least-square estimation (LSE) for different orders of the transfer function.The effectiveness of the proposed technique is verified by estimating the transfer function model of a hard disk drive actuator. © 2002 Elsevier Science Ltd. All rights reserved.
Source Title: Mechatronics
ISSN: 09574158
DOI: 10.1016/S0957-4158(01)00007-1
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.


checked on Feb 23, 2019


checked on Feb 13, 2019

Page view(s)

checked on Feb 2, 2019

Google ScholarTM



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.