Results 31 to 40 of about 84,950 (295)
An optimum design of frequency domain processing for image deblurring system
Dianzi 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
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Rekayasa Mesin, 2023 The rapid growth of Unmanned Aerial Vehicle (UAV) technology, or drone, has shown its popularity and has been significantly applied to various purposes today.
Steven Wiliam Soputra +2 more
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A pre-FFT equalizer design for application to Hiperlan/2 [PDF]
, 2000 Use of a pre-FFT Equaliser (PFE) has been previously proposed as a method for either improving the efficiency of OFDM radio modems or increasing the excess delay spread that they are capable of operating under.
Nix, AR, Bull, David, Armour, SMD
core +1 more source
git-sunao/fft-extended-source: v1.0.0
, 2022 This is the first release of fft-extended ...
git-sunao
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Minimizing Communication in the Multidimensional FFT [PDF]
SIAM Journal on Scientific Computing, 2023 We present a parallel algorithm for the fast Fourier transform (FFT) in higher dimensions. This algorithm generalizes the cyclic-to-cyclic one-dimensional parallel algorithm to a cyclic-to-cyclic multidimensional parallel algorithm while retaining the property of needing only a single all-to-all communication step.
Thomas Koopman, Rob H. Bisseling
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A New Steganography Approach depending on Isolation Curve in Digital Images. [PDF]
مجلة جامعة الانبار للعلوم الصرفة, 2009 result, protecting the whole document from being regenerated by any counterfeiting person. The main goal of this paper is combining the curve security concepts with information hiding techniques in order to increase the capabilities of steganography ...
Hala Bahjat Abdul Wahab
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Analisis Getaran Displacement Drum Roller Menggunakan FFT dan STFT
Jurnal Teknik Mesin, 2023 Drum Roller adalah mesin yang dirancang untuk pengujian ketahanan ban mobil setelah proses produksi. Peralatan berputar, dan realisasi diagnosis waktu nyata dari kesalahan getaran frekuensi umum sangat penting untuk memantau kondisi Drum Roller. Getaran
Ilhamullah Ilhamullah +2 more
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, 2023 We introduce two FFT-based ESPRIT algorithms for line spectral estimation which have lower time complexities than the original ESPRIT algorithm's O(N^3).
Shawn L. Kiser (14807923) +9 more
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Signal Processing Displayed on a Spectrogram
Revista Elektrón, 2020 This paper describes the implementation of a digital spectrogram on an embedded system, with the aim of allowing the visualization of the effects of applying digital filters and Fast Fourier Transform over a signal. The FreeRTOS operating system was used
Martin Ezequiel Paz +2 more
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Proceedings of the 2017 ACM International Symposium on Symbolic and Algebraic Computation, 2017 Let Fq be the finite field with q elements and let ω be a primitive n-th root of unity in an extension field Fqd of Fq. Given a polynomial P ∈ Fq [x] of degree less than n, we will show that its discrete Fourier transform (P (ω0), ..., P (ωn - 1)) ∈ Fqdn can be computed essentially d times faster than the discrete Fourier transform of a polynomial Q ...
Joris van der Hoeven, Robin Larrieu
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