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Erschienen in:
2015 | OriginalPaper | Buchkapitel
Current Derivative Estimation of Non-stationary Processes Based on Metrical Information
verfasst von : Elena Kochegurova, Ekaterina Gorokhova
Erschienen in: Computational Collective Intelligence
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Demand for estimation of derivatives has arisen in a range of some applied problems. One of the possible approaches to estimating derivatives is to approximate measurement data. The problem of real-time estimation of de-rivatives is investigated. A variation method of obtaining recurrent smoothing splines is proposed for estimation of derivatives. A distinguishing feature of the described method is recurrence of spline coefficients with respect to its segments and locality about measured values inside the segment. Influence of smoothing spline parameters on efficiency of such estimations is studied. Comparative analysis of experimental results is performed.