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On identification of a flexible mechanical system using decimated data

Author:Gunnarsson Svante, Linköping University, Sweden
Topic:1.1 Modelling, Identification & Signal Processing
Session:Identification of Continuous Time Systems
Keywords: Grey-box identification, continuous time, decimation, robot arm

Abstract

System identification of a flexible mechanical system using decimated data is studied. It is illustrated how the use of decimated data can give erroneous results due to the inter-sample behavior of the signals, and an intuitive explanation to this phenomenon is proposed. The possible improvement by using alternative assumptions for the inter-sample behavior is investigated.