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How to Shape Noise Spectra for Continuous System Simulation

Klöckner, Andreas and Knoblach, Andreas and Heckmann, Andreas (2015) How to Shape Noise Spectra for Continuous System Simulation. In: Proceedings of the 11th International Modelica Conference (118), pp. 411-418. Linköping University Electronic Press, Linköpings universitet, Versailles, France. 11th International Modelica Conference, September 21-23 2015, Versailles, France. doi: 10.3384/ecp15118411. ISBN 978-91-7685-955-1. ISSN 1650-3686.

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Noise for continuous-time system simulation is relevant for many applications, where time-domain results are required. Simulating such noise raises the need to consistently shape the frequency content of the signal. However, the methods for this task are not obvious and often state space implementations of form filters are approximated. In this paper, we address the problem with a new method relying on directly using the specified power spectral density for a convolution filter. For the example of railway track irregularities, we explain how to derive the required filters, implement them in the open-source Noise library, and verify the results. The new method produces correct results, is very simple to use, and enables new features for time simulation of physical systems.

Item URL in elib:https://elib.dlr.de/98408/
Document Type:Conference or Workshop Item (Speech)
Title:How to Shape Noise Spectra for Continuous System Simulation
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Klöckner, Andreasandreas.kloeckner (at) dlr.deUNSPECIFIED
Knoblach, AndreasAndreas.Knoblach (at) DLR.deUNSPECIFIED
Heckmann, AndreasAndreas.Heckmann (at) DLR.deUNSPECIFIED
Date:22 September 2015
Journal or Publication Title:Proceedings of the 11th International Modelica Conference
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
DOI :10.3384/ecp15118411
Page Range:pp. 411-418
Publisher:Linköping University Electronic Press, Linköpings universitet
Series Name:Linköping Electronic Conference Proceedings
Keywords:noise;power spectral density;track irregularity
Event Title:11th International Modelica Conference
Event Location:Versailles, France
Event Type:international Conference
Event Dates:September 21-23 2015
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Systems and Cabin (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of System Dynamics and Control > Aircraft System Dynamics
Deposited By: Klöckner, Andreas
Deposited On:05 Oct 2015 10:09
Last Modified:31 Jul 2019 19:55

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