Results 31 to 40 of about 2,482,737 (291)
A RADIX-4/8/SPLIT RADIX FFT WITH REDUCED ARITHMETIC COMPLEXITY ALGORITHM [PDF]
ICTACT Journal on Communication Technology, 2012 In this paper we present alternate form of Radix-4/8 and split radix FFT’s based on DIF (decimation in frequency) version and discuss their implementation issues that further reduces the arithmetic complexity of power-of-two discrete Fourier Transform ...
Shaik Qadeer +2 more
doaj
Automatic Petrol and Diesel Engine Sound Identification Based on Machine Learning Approaches [PDF]
E3S Web of Conferences, 2019 Petrol and diesel engine have a significantly different way to convert chemical energy into mechanical energy. In this work, the intelligent system approach is used to automatically identify the type of engine based on the sound of the engine.
Frederick Halim +2 more
doaj +1 more source
Two- and Three-Dimensional Fast Intrawall Imaging with Microwave Tomographic Algorithm
International Journal of Antennas and Propagation, 2018 A fast and efficient microwave tomographic algorithm is proposed for 2-D and 3-D real-time intrawall imaging. The exploding reflection model is utilized to simplify the imaging formulation, and the half-space Green’s function is expanded in the spectral ...
Wenji Zhang +2 more
doaj +1 more source
Pemantauan Flicker Tengangan Menggunakan Fast fourier transform (FFT)
Voteteknika (Vocational Teknik Elektronika dan Informatika), 2021 Laju elektrifikasi Sumatera Barat 92,96%. Jumlah ini akan terus meningkat setiap tahun, dan dengan meningkatnya laju elektrifikasi di Sumatera Barat maka kualitas daya yang dibutuhkan akan meningkat. Di sisi lain, peningkatan kecepatan pengisian menyebabkan penurunan kualitas daya. Kualitas daya sistem tenaga dipengaruhi oleh gangguan. Dengan kata lain,
Rani Kurnia, Riki Mukhaiyar
openaire +2 more sources
Modified Fourier expansions: theory, construction and applications [PDF]
, 2010 Modified Fourier expansions present an alternative to more standard algorithms for the approximation of nonperiodic functions in bounded domains. This thesis addresses the theory of such expansions, their effective construction and computation, and ...
core +2 more sources
A new Flap-top window FFT algorithm for energy metering based on quasi-synchronous sampling
Diance yu yibiaoIn order to further improve the accuracy of energy metering algorithms for standard electricity meters, this paper provides a comprehensive review of the principles and performance of quasi-synchronous sampling algorithms and fast Fourier transform (FFT)
ZHANG Zhiying +5 more
doaj +1 more source
Research on harmonic detection based on wavelet threshold and FFT algorithm
Systems Science & Control Engineering, 2018 The fast Fourier transform (FFT) algorithm with window interpolation is the most commonly used and most effective method in harmonic analysis. However, the fast Fourier transform has a great dependence on the quality of the signal, and the existence of ...
Shuaishuai Zhao +2 more
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Large-scale 3D fast Fourier transform computation on a GPU
ETRI Journal, 2023 We propose a novel graphics processing unit (GPU) algorithm that can handle a large-scale 3D fast Fourier transform (i.e., 3D-FFT) problem whose data size is larger than the GPU's memory.
Jaehong Lee, Duksu Kim
doaj +1 more source
Computing the fast Fourier transform on SIMD microprocessors [PDF]
, 2012 This thesis describes how to compute the fast Fourier transform (FFT) of a power-of-two length signal on single-instruction, multiple-data (SIMD) microprocessors faster than or very close to the speed of state of the art libraries such as FFTW (“Fastest ...
Blake, Anthony Martin
core
Sparse Fast Fourier Transform [PDF]
, 2022 Analisi di un recente algoritmo in C++ per calcolare la Trasformata di Fourier Sparsa (SFT) di un segnale. L'algoritmo sfrutta la sparsità di un segnale nel dominio delle frequenze per calcolare la Trasformata Discreta di Fourier (DFT) in tempi ...
Turi, Leo
core