signal processing and sampling method for obtaining time series corresponding to higher order derivatives

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ID: 186175
2010
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Abstract
For modeling and controlling dynamic phenomena it is important to establish with higher accuracy some significant quantities corresponding to the dynamic system. For fast phenomena, such significant quantities are represented by the derivatives of the received signals. In case of advanced computer modeling, the received signal should be filtered and converted into a time series corresponding to the estimated values for the dynamic system through a sampling procedure. This paper will show that present-day methods for computing in a robust manner the first derivative of a received signal (using an oscillating system working on a limited time interval and a supplementary differentiation method) can be extended to the robust computation of higher order derivatives of the received signal by using a specific set of second-order oscillating systems (working also on limited time intervals) so as estimative values for higher-order derivatives are to be directly generated (avoiding the necessity of additional differentiation or amplifying procedures, which represent a source of supplementary errors in present-day methods).
Reference Key
sterian2010mathematicalsignal Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Andreea Sterian;Alexandru Toma
Journal journal of power sources
Year 2010
DOI
10.1155/2010/913147
URL
http://dx.doi.org/10.1155/2010/913147
Keywords
civil engineering (general)mathematics engineering (general)

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