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With the development of power systems and the extensive application of nonlinear elements in the electricity system, the problem of ferroresonance do harm to the network and electricity facilities has become more prominent. Wavelet analysis has good time-frequency localization characteristic, so it is suitable for fault analysis of power system. This paper is base on in the neutral point unearthed...
The article in view of classics fractal image compression algorithm coding time excessively long question, studied the EZW in the fractal image coding application, The wavelet coefficients of an image present two characteristics when the image is processed by wavelets: one is that the energy of an image is strongly concentrated in low frequency subimage, the other is that there is a similarity between...
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