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  • Research Article
  • Open Access

Accurate Methods for Signal Processing of Distorted Waveforms in Power Systems

EURASIP Journal on Advances in Signal Processing20072007:092191

  • Received: 3 August 2006
  • Accepted: 23 December 2006
  • Published:


A primary problem in waveform distortion assessment in power systems is to examine ways to reduce the effects of spectral leakage. In the framework of DFT approaches, line frequency synchronization techniques or algorithms to compensate for desynchronization are necessary; alternative approaches such as those based on the Prony and ESPRIT methods are not sensitive to desynchronization, but they often require significant computational burden. In this paper, the signal processing aspects of the problem are considered; different proposals by the same authors regarding DFT-, Prony-, and ESPRIT-based advanced methods are reviewed and compared in terms of their accuracy and computational efforts. The results of several numerical experiments are reported and analysed; some of them are in accordance with IEC Standards, while others use more open scenarios.


  • Signal Processing
  • Power System
  • Quantum Information
  • Computational Effort
  • Accurate Method

Authors’ Affiliations

Dipartimento di Ingegneria Elettrica, Università degli Studi di Napoli Federico II, Via Claudio 21, Napoli (NA), 80100, Italy
Dipartimento di Ingegneria dell'Informazione, Seconda Università degli Studi di Napoli, Via Roma 29, Aversa (CE), 81031, Italy


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© A. Bracale et al. 2007

This article is published under license to BioMed Central Ltd. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.