Dipartimento d'Ingegneria

Moschitta Antonio

Moschitta Antonio

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Altre informazioni

  • Telefono
    075 585 3933
  • Cellulare
    348 151 6468
  • Ruolo
    Ricercatore - Research fellow
  • Area
    Misure - Measurements

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Lunedì, 28 Luglio 2014 16:51


Advanced software tools for parametric identification based on quantized data (by Antonio Moschitta and Paolo Carbone)

Description: a quantile based estimation tool  for IMEKO 2014 Software Session,developed in Matlab by Paolo Carbone and Antonio Moschitta (see the "Download attachment" link below)

Abstract - Signal parametric estimation based on quantized data is often carried out by means of least mean square (LMS) or averaging techniques. Such an approach often leads to optimal performance, resulting in almost  unbiased estimators when quantization error can approximately be modeled as an additive white noise, or when other additive white noise sources dominate quantization error. When such hypotheses are not satisfied, however, averaging techniques may produce suboptimal biased estimators. In such a case, maximum likelihood or quantile based identification techniques can be shown to lead to more performing estimators, mostly unbiased and with a lower mean square error than that of a LMS estimator. A software tool is presented, capable of estimating a DC level, a DC level corrupted by AWGN, and sinewave parameters when the frequency is known frequency, using data quantized by a non uniform ADC.
In this paper, an accurate and computationally light technique for analyzing the performance of Photovoltaic (PV) arrays is introduced. The proposed approach can be used to quickly assess the achievable Maximum Power Point (MPP) of a PV array. A method for optimally allocating a set of available modules, used to create PV arrays with a given length, is proposed, that allows to maximize the achievable power output of the obtained PV arrays.


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