Journal ArticleDOI
Fast algorithm for pseudodiscrete Wigner-Ville distribution using moving discrete Hartley transform
K.M.M. Prabhu,R. Shanmuga Sundaram +1 more
- Vol. 143, Iss: 6, pp 383-386
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TLDR
A new fast algorithm is proposed to compute pseudodiscrete Wigner-Ville distribution in real-time applications that uses the moving discrete Hartley transform to compute the Hilbert transform and implements the PDWVD in real domain.Abstract:
A new fast algorithm is proposed to compute pseudodiscrete Wigner-Ville distribution (PDWVD) in real-time applications. The proposed algorithm uses the moving discrete Hartley transform to compute the Hilbert transform and thereby implements the PDWVD in real domain. The computational complexity of the proposed algorithm is derived and compared with the existing algorithm to compute the PDWVD.read more
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Journal ArticleDOI
Binary Discrete Cosine and Hartley Transforms
TL;DR: A systematic method for developing a binary version of a given transform by using the Walsh-Hadamard transform (WHT) is proposed and it is shown that the resulting BDCT corresponds to the well-known sequency-ordered WHT, whereas the BDHT can be considered as a new Hartley-ordering WHT.
Journal ArticleDOI
Application of Wigner-Ville distribution in electromigration noise analysis
Cher Ming Tan,Shin Yeh Lim +1 more
TL;DR: In this paper, the Wigner-Ville distribution is used for the analysis of electromigration noise data for the first time, and it is found that much hidden and useful information in the noise data can be revealed by using this distribution.
Journal ArticleDOI
D14: FPGA-based implementation of the instantaneous frequency estimation of phonocardiographic signals
Andrés Hernández-Esteban,Fco. Javier Toledo-Moreo,Juan Martínez-Alajarín,J. Javier Martínez-Álvarez,Ramón Ruiz-Merino +4 more
TL;DR: To compute in real time the instantaneous frequency of a signal, the algorithms have been implemented in a FPGA device, exploiting the high performance and flexibility of reconfigurable hardware.
References
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Signal processing with lapped transforms
TL;DR: Applications of transforms in signal processing signal processing in subbands lapped orthogonal transforms the modulated lapped transform heirarchical lapped transforms applications of lapping transforms.
Journal ArticleDOI
The fast Hartley transform
TL;DR: The Fast Hartley Transform (FHT) is as fast as or faster than the Fast Fourier Transform (FFT) and serves for all the uses such as spectral analysis, digital processing, and convolution to which the FFT is at present applied.
Journal ArticleDOI
Running DHT and real-time dht analyser
Jie-Cherng Liu,T.-P. Lin +1 more
TL;DR: In this article, the recursive Hartley transform (RHF) is shown to have the ability to calculate both the running DHT and the running discrete Fourier transform (DFT).
Journal ArticleDOI
New method of computing Wigner-Ville distribution
S. Bala Narayanan,K.M.M. Prabhu +1 more
TL;DR: A new method to evaluate the WVD of a real signal using the fast Hartley transform (FHT) is presented, compared with the existing fast Fourier transform (FFT) method in terms of computation time.
Proceedings ArticleDOI
Fast computation of wavelet transforms with the extended lapped transform
TL;DR: The use of the extended lapped transform (ELT) to implement orthogonal wavelet transforms (WTs) is suggested, and a fast algorithm is presented for the ELT-based WT.