In this paper, the discrete wavelet transform (DWT) is used to solve the dense system of equations which arises from integral equation of acoustic scattering. The DWT using appropriate wavelet family for acquiring larger sparsification of the system matrix is used to obtain a sparse approximation ...
A discrete wavelet transform (DWT) is a transform that decomposes a given signal into a number of sets, where each set is a time series of coefficients describing the time evolution of the signal in the corresponding frequency band. From: Control Applications for Biomedical Engineering Systems, ...
A Survey on Image Denoising based on Wavelet Transform:研究基于小波变换的图像去噪 热度: IEEE TRANSACTIONS ON SIGNAL PROCESSING, VOL. 56, NO. 1, JANUARY 2008 393 High-Speed VLSI Implementation of 2-D Discrete Wavelet Transform Chao Cheng, Member, IEEE, and Keshab K. Parhi, Fellow, IEEE ...
This paper describes a powerful and simple new wavelet-based preconditioning method for the CG solvers of Poisson equation. The equation can be solved with an iterative matrix solver, however, in the absence of our method, the computing time will increase exponentially with respect to an increase...
The method of Short-Time Fourier analysis involves application of Short-Time Fourier transform (STFT) giving time–frequency information. The method of continuous wavelet analysis involves application of Continuous Wavelet transform (CWT) giving signal information in terms of scale and time where ...
Define discrete. discrete synonyms, discrete pronunciation, discrete translation, English dictionary definition of discrete. constituting a separate thing; distinct; different; individual; unconnected Not to be confused with: discreet – judicious in one
Saitoh, S.: The weierstrass transform and an isometry in the heat equation. Appl. Anal. 16(1), 1–6 (1983) Article MathSciNet ADS Google Scholar Rawat, A., Srivastava, H., Singh, A., Singh, S.: A family of Mexican hat wavelet transforms associated with an isometry in the heat ...
Partial differential equation PCA: Principal component analysis PNN: Probabilistic neural network ROM: Rank order mean RMSE: Root mean squared error SFCM: Spatial constrained FCM SVM: Support vector machine USFFT: Unequal space fast fourier transform ...
Hybrid energy storage Discrete wavelet transform Electric vehicle Energy management system Long-short term memory neural network 1. Introduction The peak performance of an Electric Vehicle (EV) is determined by the power density of the Energy Storage System (ESS). The ESS must be able to provide/...
2.2. Discrete Wavelet Transform The discrete wavelet transform is used to analyze the two-dimension image where it has the ability to divide the image into four main areas. The distributed data depends on the degree of the important data. The data area is called the low-low (LL) subband. ...