Fast Radix-32 Approximate DFTs for 1024-Beam Digital RF Beamforming
IEEE Access, 2020 The discrete Fourier transform (DFT) is widely employed for multi-beam digital beamforming. The DFT can be efficiently implemented through the use of fast Fourier transform (FFT) algorithms, thus reducing chip area, power consumption, processing time ...
Arjuna Madanayake +8 more
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An Orthogonal Discrete Auditory Transform
, 2005 An orthogonal discrete auditory transform (ODAT) from sound signal to spectrum is constructed by combining the auditory spreading matrix of Schroeder et al and the time one map of a discrete nonlocal Schr\"odinger equation.
Qi, Yingyong, Xin, Jack
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A DHT-Based Multicarrier Modulation System with Pairwise ML Detection [PDF]
, 2017 This paper presents a complex-valued discrete multicarrier modulation (MCM) system based on the real-valued discrete Hartley transform (DHT) and its inverse (IDHT).
He, Chang +5 more
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Advances in Difference Equations, 2019 For discrete-time iterative learning control systems, the discrete Fourier transform (DFT) is a powerful technique for frequency analysis, and Toeplitz matrices are a typical tool for the system input–output transmission.
Xiaohui Li, Xiaoe Ruan
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Channel Estimation and Optimal Pilot Signals for Universal Filtered Multi-Carrier (UFMC) Systems [PDF]
, 2017 We propose channel estimation algorithms and pilot signal optimization for the universal filtered multi-carrier (UFMC) system based on the comb-type pilot pattern.
He, Chang +4 more
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On companding techniques for PAPR reduction in DCT SC-FDMA system in the presence of CFOs
Alexandria Engineering Journal, 2023 In the single carrier frequency division multiple access (SC-FDMA) system, the use of discrete cosine transform (DCT) instead of discrete Fourier transform (DFT) has shown improved bit error rate (BER) performance.
Naim Ben Ali +5 more
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Archives of Metallurgy and Materials, 2015 A novel Hilbert-twin (H-twin) method is introduced as an alternative method for the computation of the resonant frequency for exponentially damped free decays embedded in noise.
Majewski M., Magalas L.B.
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Fourier-spectral-method implementation of deformation in the phase-field crystal model [PDF]
MATEC Web of Conferences, 2018 The phase-field crystal (PFC) method is a promising computational model with atomistic resolution and diffusive time scale. In this work, the Fourier-spectral-method (FSM) scheme was developed for evaluating the PFC free energy of a system subjected ...
Pisutha-Arnond Nirand
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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
FPS-SFT: A Multi-dimensional Sparse Fourier Transform Based on the Fourier Projection-slice Theorem
, 2017 We propose a multi-dimensional (M-D) sparse Fourier transform inspired by the idea of the Fourier projection-slice theorem, called FPS-SFT. FPS-SFT extracts samples along lines (1-dimensional slices from an M-D data cube), which are parameterized by ...
Patel, Vishal M. +2 more
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