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Pulse signal is the non-stationary random signal, the signal denoising is an important task before analyzing it. Based on wavelet thresholding denoising method presented by Donoho, a new compromising threshold function is proposed. Compared with classical thresholding denoising methods, it overcomes the discontinuity of the hard-thresholding method and reduces the fixed deviation between the estimated...
A new algorithm for suppressing speckle in synthetic aperture radar (SAR) images was proposed based on the local statistical property of wavelet coefficients. This method modeled the distribution of wavelet coefficients as an adaptive Gaussian mixture model. This model took into account geometrical structures of the coefficients within one scale and it was adaptive to the wavelet subbands corresponding...
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