Multi-Input Identification Using Uncorrelated Signals and Its Application to Dual-Stage Hard Disk Drives

Citation

Tan, Ai Hui (2018) Multi-Input Identification Using Uncorrelated Signals and Its Application to Dual-Stage Hard Disk Drives. IEEE Transactions on Magnetics, 54 (10). pp. 1-4. ISSN 0018-9464, 1941-0069

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Abstract

The identification of the linear dynamics of multi-input discrete-time systems is considered. The proposed technique simultaneously perturbs all the inputs using a set of periodic signals which are uncorrelated with one another. The technique has the advantages of short experimentation time, no recursive computation, and being able to provide a quantification of the effects of noise and nonlinear distortion. The proposed method is extended to identification beyond the Nyquist frequency, capitalizing on the periodic nature of the perturbation signals. Simulation results on a dual-stage hard disk drive illustrate the effectiveness of the proposed approach.

Item Type: Article
Uncontrolled Keywords: system identification, uncorrelated signals, multi-input systems, perturbation signals
Subjects: Q Science > QA Mathematics > QA299.6-433 Analysis
Divisions: Faculty of Engineering (FOE)
Depositing User: Ms Rosnani Abd Wahab
Date Deposited: 30 Nov 2020 10:19
Last Modified: 30 Nov 2020 10:19
URII: http://shdl.mmu.edu.my/id/eprint/7505

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