Results 31 to 40 of about 138,884 (189)
Pipelined digital SAR azimuth correlator using hybrid FFT-transversal filter [PDF]
, 1984 A synthetic aperture radar system (SAR) having a range correlator is provided with a hybrid azimuth correlator which utilizes a block-pipe-lined fast Fourier transform (FFT).
Liu, K. Y., Wu, C.
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PERFORMANCE STUDY OF OFDM BASED ON IP-WT [PDF]
مجلة جامعة الانبار للعلوم الصرفة, 2008 In this paper, a proposed model based on In-Place Wavelet Transform (IP-WT) was suggested to improve the performance of the Orthogonal Frequency Division Multiplexing (OFDM) under the Additive White Gaussian Noise (AWGN), and flat fading channel.
Salih M. Salih
doaj +1 more source
mpi4py-fft: Parallel Fast Fourier Transforms with MPI for Python [PDF]
Journal of Open Source Software, 2019 The fast Fourier transform (FFT) is an algorithm that efficiently computes the discrete Fourier transform. Since the dawn of our digital society, the FFT has permeated to the heart of everyday life applications involving audio, image, and video processing.
Mikael Mortensen +2 more
openaire +3 more sources
Comparisons of the execution times and memory requirements for high-speed discrete fourier transforms and fast fourier transforms, for the measurement of AC power harmonics [PDF]
, 2011 Conventional wisdom dictates that a Fast Fourier Transform (FFT) will be a more computationally effective method for measuring multiple harmonics than a Discrete Fourier Transform (DFT) approach.
Burt, G. M., Roscoe, A. J.
core
IMPLEMENTATION OF FAST FOURIER TRANSFORM (FFT) FOR INFANT CRYING DETECTION
Indonesian Applied Physics Letters, 2023 Babies cry based on the discomfort felt by the baby which is a reflex such as when a hungry baby will suck his hand and then he will start crying, hunger can be interpreted from the baby's crying. At each of the baby's cries, when each crying pattern was responded to with the solution applied to the previous baby, each baby would stop crying.
Latifah Listyalina +2 more
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Accelerating the calibration of stochastic volatility models [PDF]
This paper compares the performance of three methods for pricing vanilla options in models with known characteristic function: (1) Direct integration, (2) Fast Fourier Transform (FFT), (3) Fractional FFT. The most important application of this comparison
Kilin, Fiodar
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DSP IMPLEMENTATION OF THE FAST FOURIER TRANSFORM USING THE CORDIC ALGORITHM
ICTACT Journal on Communication Technology, 2018 Fourier transform is a tool enabling the understanding and implementation of a large number of numerical methods for signal and image processing. This tool has many applications in domains such as vocal recognition, image quality improvement, digital ...
Youness Mehdaoui, Rachid El Alami
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Robust TDOA/FDOA estimation from emitter signals for hybrid localization using UAVs
Defence Technology, 2022 This paper considers the time difference of arrival (TDOA) and frequency difference of arrival (FDOA) estimation problem for joint localization using unmanned aerial vehicles (UAVs), involving range migration (RM) and Doppler ambiguity within observation
Yu-bing Wang +4 more
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, 2010 We propose a new type of the Ensemble Kalman Filter (EnKF), which uses the Fast Fourier Transform (FFT) for covariance estimation from a very small ensemble with automatic tapering, and for a fast computation of the analysis ensemble by convolution ...
Beezley, Jonathan D. +2 more
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Isotropic Spin Trap EPR Spectra Simulation by Fast Fourier Transform (FFT)
E-Journal of Chemistry, 2005 The detection and investigation of free radicals forming in living systems became possible due to the introduction of the method of spin traps. In this work, the electron spin resonance (ESR) spectra of DMPO/HO.
S. Laachir +3 more
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