Numerical evaluation of the Hilbert transform by the Fast Fourier Transform (FFT) technique [PDF]
Geophysical Journal International, 1981 Summary. Three Fast Fourier Transform numerical methods for computing the Hilbert transform have been evaluated for their accuracy by numerical examples. All three methods employ the property that the Hdbert transform is a convolution. The first method uses the result that the Fourier transform of 1/πx is — isgn(ω).
H.-P. Liu, D. D. Kosloff
openaire +1 more source
IMPLEMENTASI ALGORITMA FAST FOURIER TRANSFORM UNTUK PENGOLAHAN SINYAL DIGITAL PADA TUNING GITAR DENGAN OPEN STRING [PDF]
, 2014 Penelitian ini bertujuan untuk mengetahui tingkat akurasi dalam pengolahan sinyal digital pada tuning gitar dengan open string. Dalam penelitian ini, algoritma yang digunakan adalah algoritma Fast Fourier Transform (FFT). Algoritma Fast Fourier Transform
Dianputra , Robby +2 more
core
Fast Fourier Transform algorithm design and tradeoffs [PDF]
The Fast Fourier Transform (FFT) is a mainstay of certain numerical techniques for solving fluid dynamics problems. The Connection Machine CM-2 is the target for an investigation into the design of multidimensional Single Instruction Stream/Multiple Data
Adams, George B., III +1 more
core +1 more source
Fast Ewald summation for electrostatic potentials with arbitrary periodicity
, 2017 A unified treatment for fast and spectrally accurate evaluation of electrostatic potentials subject to periodic boundary conditions in any or none of the three space dimensions is presented.
Bagge, Joar +2 more
core +1 more source
A Comparative Performance Analyses of FFT Based OFDM and DWT Based OFDM Systems
Journal of New Results in Science, 2016 While continuously increasing demand for high data rates, to develop more efficient wireless communication systems will always be needed. Orthogonal Frequency Division Multiplexing (OFDM) is a promising multi-carrier wireless communication system for ...
Engin Oksuz +4 more
doaj
Efficient Cycle Frequency Acquisition of a Cyclostationary Signal with the FACA Method [PDF]
Radioengineering, 2019 The cycle frequencies of a cyclostationary signal can be used for the signal identification and classification, separation of the overlapped signals in cycle domain, and so on.
Y. Hu +4 more
doaj
International Journal of Antennas and Propagation, 2019 We introduce the discrete dipole approximation (DDA) for efficiently calculating the two-dimensional electric field distribution for our microwave tomographic breast imaging system. For iterative inverse problems such as microwave tomography, the forward
Samar Hosseinzadegan +3 more
doaj +1 more source
An Online Evaluation Method for Random Number Entropy Sources Based on Time-Frequency Feature Fusion
EntropyTraditional entropy source evaluation methods rely on statistical analysis and are hard to deploy on-chip or online. However, online detection of entropy source quality is necessary in some applications with high encryption levels.
Qian Sun +5 more
doaj +1 more source
Comparison and Realization of Fast Acquisition Method for GPS Signal under High Dynamic
MATEC Web of Conferences, 2017 In order to solve the problem of fast acquisition for GPS signal under high dynamic, the paper add window in traditional Partial Matched Filter (PMF) plus Fast Fourier Transform (FFT) for fast acquisition with the purpose of reducing the scalloping loss ...
Zeng Chan +3 more
doaj +1 more source
Brillouin Scattering Spectrum Analysis Based on Auto-Regressive Spectral Estimation
Photonic Sensors, 2018 Auto-regressive (AR) spectral estimation technology is proposed to analyze the Brillouin scattering spectrum in Brillouin optical time-domain refelectometry.
Mengyun Huang +4 more
doaj +1 more source