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Application of the Predictor-Based Subspace Identification Method to Rotorcraft System Identification

Wartmann, Johannes and Seher-Weiß, Susanne (2013) Application of the Predictor-Based Subspace Identification Method to Rotorcraft System Identification. In: 39th European Rotorcraft Forum. 39th European Rotorcraft Forum (ERF), 06. Sept. 2013, Moskau, Russland.

Full text not available from this repository.

Abstract

In this paper, the optimized predictor-based subspace identification (PBSIDopt) method is applied to identify linear models of DLR's research helicopter ACT/FHS and to evaluate its usage to enhance existing physics based models in the future. For this effort, dedicated identification flight test data is used. This paper first describes the well known Maximum Likelihood frequency domain output error method and the applied physical model briefly. Then, the PBSIDopt method is presented and parameters, which influence the identification process, are discussed. Results from both methods using the same flight test data of the ACT/FHS are compared; model accuracy, order and missing dynamics are investigated. Advantages and disadvantages of both methods are evaluated and the applicability of the PBSIDopt method to rotorcraft system identification and its usage to improve the existing physical model structure is discussed.

Item URL in elib:https://elib.dlr.de/84142/
Document Type:Conference or Workshop Item (Speech)
Title:Application of the Predictor-Based Subspace Identification Method to Rotorcraft System Identification
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Wartmann, JohannesJohannes.Wartmann (at) dlr.deUNSPECIFIED
Seher-Weiß, SusanneSusanne.Seher-Weiss (at) dlr.deUNSPECIFIED
Date:5 September 2013
Journal or Publication Title:39th European Rotorcraft Forum
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:System Identification, ACT/FHS, Parameter Estimation, Subspace, PBSID, Rotorcraft
Event Title:39th European Rotorcraft Forum (ERF)
Event Location:Moskau, Russland
Event Type:international Conference
Event Dates:06. Sept. 2013
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Rotorcraft (old)
DLR - Research area:Aeronautics
DLR - Program:L RR - Rotorcraft Research
DLR - Research theme (Project):L - The Smart Rotorcraft (old)
Location: Braunschweig
Institutes and Institutions:Institute of Flight Systems > Rotorcraft
Deposited By: Wartmann, Johannes
Deposited On:11 Sep 2013 12:21
Last Modified:01 Dec 2018 19:49

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