On Third-Order Frequency-Domain Nonlinear System Identification

Sang Won Nam, E. J. Powers

Research output: Contribution to conferencePaper

Abstract

The main purpose of this paper is to present a practical digital approach for identifying third-order (or cubically) nonlinear systems, where the frequency-domain Volterra series representation is utilized along with higher-order statistical (HOS) analysis of I/O data. As one practical application of the approach, the problem of estimating the system parameters of a nonlinear oscillatory system (described by a simple pendulum equation with linear damping) is considered. Note that the proposed approach does not assume any particular statistics of the input.

Original languageEnglish
Pages1766-1771
Number of pages6
Publication statusPublished - 2003 Dec 1
EventProceedings of the Thirteenth (2003) International Offshore and Polar Engineering Conference - Honolulu, HI, United States
Duration: 2002 May 252003 May 30

Other

OtherProceedings of the Thirteenth (2003) International Offshore and Polar Engineering Conference
CountryUnited States
CityHonolulu, HI
Period02/05/2503/05/30

    Fingerprint

Keywords

  • HOS
  • Parameter estimation
  • RLS
  • System identification
  • Third-order nonlinear system
  • Volterra series

Cite this

Nam, S. W., & Powers, E. J. (2003). On Third-Order Frequency-Domain Nonlinear System Identification. 1766-1771. Paper presented at Proceedings of the Thirteenth (2003) International Offshore and Polar Engineering Conference, Honolulu, HI, United States.