Browsing by Keywords "Digital filters"
Now showing items 1-9 of 9
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Adaptive filtering approaches for non-Gaussian stable processes
(IEEE, 1995-05)A large class of physical phenomenon observed in practice exhibit non-Gaussian behavior. In this paper, α-stable distributions, which have heavier tails than Gaussian distribution, are considered to model non-Gaussian ... -
Adaptive filtering for non-gaussian stable processes
(IEEE, 1994)A large class of physical phenomenon observed in practice exhibit non-Gaussian behavior. In this letter, a-stable distributions, which have heavier tails than Gaussian distribution, are considered to model non-Gaussian ... -
Cumulant based identification approaches for nonminimum phase FIR systems
(IEEE, 1993)In this paper, recursive and least squares methods for identification of nonminimum phase linear time-invariant (NMP-LTI) FIR systems are developed. The methods utilize the second- and third-order cumulants of the output ... -
Equiripple FIR filter design by the FFT algorithm
(Institute of Electrical and Electronics Engineers, 1997-03)The fast Fourier transform (FFT) algorithm has been used in a variety of applications in signal and image processing. In this article, a simple procedure for designing finite-extent impulse response (FIR) discrete-time ... -
Morphological subband decomposition structure using GF(N) arithmetic
(IEEE, 1996-09)Linear filter banks with critical subsampling and perfect reconstruction (PR) property have received much interest and found numerous applications in signal and image processing. Recently, nonlinear filter bank structures ... -
Optimal filtering in fractional Fourier domains
(Institute of Electrical and Electronics Engineers, 1997-05)For time-invariant degradation models and stationary signals and noise, the classical Fourier domain Wiener filter, which can be implemented in O(N log N) time, gives the minimum mean-square-error estimate of the original ... -
Reducing the dispersion errors of the finite-difference time-domain method for multifrequency plane-wave excitations
(Taylor & Francis, 2003)We demonstrate the applications of discrete-time signal-processing (SP) techniques for the purpose of generating accurate plane waves in the finite-difference time-domain (FDTD) method. The SP techniques are used either ... -
Signal-processing techniques to reduce the sinusoidal steady-state error in the FDTD method
(IEEE, 2000-04)Techniques to improve the accuracy of the finite-difference time-domain (FDTD) solutions employing sinusoidal excitations are developed. The FDTD computational domain is considered as a sampled system and analyzed with ... -
Teager energy based feature parameters for speech recognition in car noise
(Institute of Electrical and Electronics Engineers, 1999-10)In this letter, a new set of speech feature parameters based on multirate signal processing and the Teager energy operator is introduced. The speech signal is first divided into nonuniform subbands in mel-scale using a ...