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- W2359552813 abstract "DFT(Discrete Fourier Transform) is usually used to analyze flicker signal,but its inherent spectral leakage and barrier effect lead to low accuracy of Pst.A method based on WT(Wavelet Transform) to improve the accuracy of Pst is proposed,which uses DFT and IDFT(Inverse Discrete Fourier Transform) to avoid the frequency aliasing of Mallat algorithm.For a single frequency flicker signal,it uses interval sampling to reduce the computational time of decomposition and reconstruction;for multi-frequency flicker signal,the WT frequency range is given to reduce the energy leakage,forming the DMallat algorithm,which extracts the characteristic parameters of voltage fluctuation signals to improve the calculation accuracy of electric parameters,such as frequency and amplitude,and then that of Pst.Simulative results show its effectiveness and applicability." @default.
- W2359552813 created "2016-06-24" @default.
- W2359552813 creator A5031118213 @default.
- W2359552813 date "2009-01-01" @default.
- W2359552813 modified "2023-09-28" @default.
- W2359552813 title "Improve calculation accuracy of short term flicker severity based on WT" @default.
- W2359552813 hasPublicationYear "2009" @default.
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