Nonlinear Structure Analysis Using the Best Linear Approximation
2006 (English)In: Proceedings of the 2006 International Conference on Noise and Vibration Engineering, 2006, 2751-2760 p.Conference paper (Refereed)
In this paper, we propose a method to distinguish between some nonlinear system structures using the bestlinear approximation (BLA) of the system in order to select an appropriate model structure. The main ideaof the method is to apply a Gaussian input signal and to vary the root mean square (rms) value and thepower spectrum of this signal. Depending on the resulting changes of the amplitude and phasecharacteristics of the BLA, an appropriate model structure for the Device Under Test can be selected. Atheoretical analysis of the method is presented for some block-oriented structures.
Place, publisher, year, edition, pages
2006. 2751-2760 p.
Nonlinear system, Gaussian, Linear approximation
Engineering and Technology Control Engineering
IdentifiersURN: urn:nbn:se:liu:diva-39196Local ID: 47148OAI: oai:DiVA.org:liu-39196DiVA: diva2:260045
2005 International Conference on Noise and Vibration Engineering, Leuven, Belgium, September, 2006