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Comparison of Wavelet and FFT Based Single Channel Speech Signal Noise Reduction Techniques
DWT DWPT wavelet wavelet packet FFT noise control speech enhancement noise cancellation filter
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2015/9/29
This paper compares wavelet and short time Fourier transform based techniques for single channel speechsignal noise reduction. Despite success of wavelet denoising of images, it has not yet been widel...
Numerical solution of nth-order integro-differential equations with trigonometric wavelet
integro-differential equation collocation method
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2010/9/26
Integro-differential equations are appeared in many engineering and physic fields. We select fredholm integro-differential equation and basis gained from trigonometric wavelet scaling function. In thi...
Wavelet neural networks for nonlinear time series analysis
Non Stationary-nonlinear Time Series Wavelet Networks
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2010/9/27
A wavelet network is an important tool for analyzing time series especially when it is nonlinear and non-stationary. It takes advantage of high resolution of wavelets and learning and feed forward nat...
Wavelet image coding measurement based on system visual human
DWT copression image quality
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2010/9/27
A reliable quality measurement is a much needed tool for determining the type and amount of image distortion for the embedded zero tree wavelet image coding based on perceptual techniques. Attempts to...
Haar wavelet method for solving Cahn-Allen equation
Nonlinear parabolic equations Cahn–Allen equation
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2010/9/17
In this paper, we develop an accurate and efficient Haar wavelet method for well-known Cahn-Allen equation. The proposed scheme can be used to a wide class of nonlinear equations. The power of this ma...
Strong Convergence Rates of Wavelet Estimators in Semiparametric Regression Models with Censored Data
Semiparametric regression model Wavelet estimate Censored data Law of the iterated logarithm Strong uniform convergence rate
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2008/11/10
The paper studies a semiparametric regression model
Yi Xi = Xiβ+gT +ei, i = 1,2,L,n .
where Yi is censored on the right by another random variable Ci with known or unknown distribution G . First...
Boundedness of the Wavelet Transform in Certain Function Spaces
Continuous wavelet transform Distributions Sobolev space Besov space Lizorkin-Triebel space
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2008/7/2
Boundedness of the Wavelet Transform in Certain Function Spaces.
INVERSE RADON TRANSFORM WITH ONE-DIMENSIONAL WAVELET TRANSFORM
Radon transform wavelet tran
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2007/12/10
In this paper, the wavelet inverse formula of Radon transform is obtained with onedimensional wavelet. The convolution back-projection method of Radon transform is derived from this inverse formula. ...