Roeser, Mathias Stefan und Fezans, Nicolas (2021) Method for designing multi-input system identification signals using a compact time-frequency representation. CEAS Aeronautical Journal. Springer. doi: 10.1007/s13272-021-00499-6. ISSN 1869-5590.
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Offizielle URL: https://link.springer.com/article/10.1007/s13272-021-00499-6
Kurzfassung
A flight test campaign for system identification is a costly and time-consuming task. Models derived from wind tunnel experiments and CFD calculations must be validated and/or updated with flight data to match the real aircraft stability and control characteristics. Classical maneuvers for system identification are mostly one-surface-at-a-time inputs and need to be performed several times at each flight condition. Various methods for defining very rich multi-axis maneuvers, for instance based on multisine/sum of sines signals, already exist. A new design method based on the wavelet transform allowing the definition of multi-axis inputs in the time-frequency domain has been developed. The compact representation chosen allows the user to define fairly complex maneuvers with very few parameters. This method is demonstrated using simulated flight test data from a high-quality Airbus A320 dynamic model. System identification is then performed with this data, and the results show that aerodynamic parameters can still be accurately estimated from these fairly simple multi-axis maneuvers.
elib-URL des Eintrags: | https://elib.dlr.de/134192/ | ||||||||||||
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Dokumentart: | Zeitschriftenbeitrag | ||||||||||||
Titel: | Method for designing multi-input system identification signals using a compact time-frequency representation | ||||||||||||
Autoren: |
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Datum: | 12 März 2021 | ||||||||||||
Erschienen in: | CEAS Aeronautical Journal | ||||||||||||
Referierte Publikation: | Ja | ||||||||||||
Open Access: | Ja | ||||||||||||
Gold Open Access: | Nein | ||||||||||||
In SCOPUS: | Ja | ||||||||||||
In ISI Web of Science: | Nein | ||||||||||||
DOI: | 10.1007/s13272-021-00499-6 | ||||||||||||
Verlag: | Springer | ||||||||||||
ISSN: | 1869-5590 | ||||||||||||
Status: | veröffentlicht | ||||||||||||
Stichwörter: | System identification, Parameter estimation, Wavelet transform, Input design, Maneuver Design | ||||||||||||
HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||
HGF - Programm: | Luftfahrt | ||||||||||||
HGF - Programmthema: | Effizientes Luftfahrzeug | ||||||||||||
DLR - Schwerpunkt: | Luftfahrt | ||||||||||||
DLR - Forschungsgebiet: | L EV - Effizientes Luftfahrzeug | ||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | L - Virtuelles Flugzeug und Validierung | ||||||||||||
Standort: | Braunschweig | ||||||||||||
Institute & Einrichtungen: | Institut für Flugsystemtechnik Institut für Flugsystemtechnik > Flugdynamik und Simulation | ||||||||||||
Hinterlegt von: | Roeser, Mathias Stefan | ||||||||||||
Hinterlegt am: | 16 Aug 2021 13:35 | ||||||||||||
Letzte Änderung: | 23 Okt 2023 07:33 |
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