Results 11 to 20 of about 73,593 (306)

HC-FFT: highly configurable and efficient FFT implementation on FPGA

open access: yesTURKISH JOURNAL OF ELECTRICAL ENGINEERING & COMPUTER SCIENCES, 2021
FFT is one of the basic building blocks in many applications such as sensors, radars, communications. For some applications, e.g., real-time spectral monitoring and analysis, FFT needs to be”run-time configurable” so that the system is real-time. When examining the previous work on configurable real-time (FPGA-based) FFT implementations, we see that ...
Pakize Ergül   +2 more
openaire   +4 more sources

The Tangent FFT [PDF]

open access: yes, 2007
The split-radix FFT computes a size-n complex DFT, when n is a large power of 2, using just arithmetic operations on real numbers. This operation count was first announced in 1968, stood unchallenged for more than thirty years, and was widely believed to be best possible. Recently James Van Buskirk posted software demonstrating that the split-radix FFT
Boztas, S., Lu, H.F., Bernstein, D.J.
core   +6 more sources

Parallel FFT-hashing [PDF]

open access: yes, 1994
We propose two families of scalable hash functions for collision-resistant hashing that are highly parallel and based on the generalized fast Fourier transform (FFT). FFT-hashing is based on multipermutations. This is a basic cryptographic primitive for perfect generation of diffusion and confusion which generalizes the boxes of the classic FFT.
Schnorr, Claus Peter, Vaudenay, Serge
core   +5 more sources

A hybrid GPU/CPU FFT library for large FFT problems [PDF]

open access: yes2013 IEEE 32nd International Performance Computing and Communications Conference (IPCCC), 2013
Graphic Processing Units (GPU) has been proved to be a promising platform to accelerate large size Fast Fourier Transform (FFT) computation. However, GPU performance is severely restricted by the limited memory size and the low bandwidth of data transfer through PCI channel.
Shuo Chen, Xiaoming Li 0010
openaire   +2 more sources

Low-Complexity Super-Resolution Detection for Range-Vital Doppler Estimation FMCW Radar [PDF]

open access: yesJournal of Electromagnetic Engineering and Science, 2021
This paper proposes low-complexity super-resolution detection for range-vital Doppler estimation frequency-modulated continuous wave (FMCW) radar. In regards to vital radar, and in order to estimate joint range and vital Doppler information such as the ...
Bongseok Kim   +4 more
doaj   +1 more source

Comparison of FFT-Based and DCT-Based Channel Estimation and ECC for OFDM System [PDF]

open access: yesEngineering and Technology Journal, 2015
Orthogonal Frequency Division Multiplexing (OFDM) has become a popular modulation method for high data rate wireless communications. In this paper, two schemes are proposed.
Awatif Ali Jafaar
doaj   +1 more source

Fast Fourier transform for fingerprint enhancement and features extraction with adaptive block size using orientation fields [PDF]

open access: yesITM Web of Conferences, 2022
Extracting minutiae from a digital fingerprint is a crucial step in a fingerprint-based recognition systems. This work deals with poor-quality fingerprint images containing broken ridges.
Amina Ait Aoudia   +2 more
doaj   +1 more source

Advancing Fault Diagnosis for Parallel Misalignment Detection in Induction Motors Based on Convolutional Neural Networks

open access: yesJurnal EECCIS (Electrics, Electronics, Communications, Controls, Informatics, Systems), 2023
Maintenance of machines is highly necessary to prolong the operational lifespan of induction motors. Prioritizing preventive measures is crucial in order to prevent more significant damage to the machinery.
Hanif Adi Rahmawan   +3 more
doaj   +1 more source

FFT size optimization for LTE RoF in nonlinear fibre propagation [PDF]

open access: yes, 2012
This papers investigates the performance of the fast Fourier transform (FFT) sizes- 64, 128, 256, 512 and 1024 for the orthogonal frequency division multiplexing (OFDM) scheme in 3 rd generation partnership program (3GPP)-long term evolution (LTE) and ...
Ghassemlooy, Zabih   +7 more
core   +1 more source

An optimum design of frequency domain processing for image deblurring system

open access: yesDianzi Jishu Yingyong, 2019
In practical applications, it is difficult to make blurred images clear in spatial domain. Therefore, it is necessary to transform the image in frequency domain and implement image deblurring in frequency domain.
Li Jingjing, Liu Yunfei
doaj   +1 more source

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