Results 1 to 10 of about 163 (69)
The Sufficient Condition for Ensuring the Reliability of Perception of the Steganographic Message in the Walsh-Hadamard Transform Domain [PDF]
Problems of the Regional Energetics, 2022 In view of the high compatibility of the Walsh-Hadamard transform to the architecture of mod-ern computing facilities, it is sensible to use it in methods of steganography and steganalysis.
Kobozeva A.A., Sokolov A.V.
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Efficient Coding of the Embedded Signal in Steganographic Systems with Multiple Access [PDF]
Problems of the Regional Energetics, 2021 Today, steganographic systems with multiple access are of considerable importance. In such sys-tems, the orthogonal Walsh-Hadamard transform is most often used for multiplexing and divid-ing channels, which leads to the need for efficient coding of the ...
Kobozeva A.A., Kobozeva A.A.,
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On the order of magnitude of Walsh-Fourier transform [PDF]
Mathematica Bohemica, 2020 For a Lebesgue integrable complex-valued function $f$ defined on $\mathbb R^+:=[0,\infty)$ let $\hat f$ be its Walsh-Fourier transform. The Riemann-Lebesgue lemma says that $\hat f(y)\to0$ as $y\to\infty$.
Bhikha Lila Ghodadra, Vanda Fülöp
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Structures of processors for calculating the instant Walsh spectrum
Доклады Белорусского государственного университета информатики и радиоэлектроники, 2021 The work is devoted to the development of circuits for fast Walsh transform processors of the serialparallel type. The fast Walsh transform processors are designed for decoding error-correcting codes and synchronization; their use can reduce the cost of ...
A. A. Budzko, T. N. Dvornikova
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Discovering Non-Linear Boolean Functions by Evolving Walsh Transforms with Genetic Programming
Algorithms, 2023 Stream ciphers usually rely on highly secure Boolean functions to ensure safe communication within unsafe channels. However, discovering secure Boolean functions is a non-trivial optimization problem that has been addressed by many optimization ...
Luigi Rovito +2 more
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Fault identification of ball bearings using Fast Walsh Hadamard Transform, LASSO feature selection, and Random forest classifier [PDF]
FME Transactions, 2022 To reveal the machinery health condition, time-frequency analysis is an effective tool when signals are non-stationary. To identify bearing faults, numerous techniques have been proposed by various researchers.
Dave V., Thakker H., Vakharia V.
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IEEE Access, 2021 In this paper, we propose a three-stage lightweight framework for centrifugal pump fault diagnosis. First, the centrifugal pump vibration signatures are fast transformed using a Walsh transform, and Walsh spectra are obtained. To overcome the hefty noise
Zahoor Ahmad +4 more
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Nonlinearity of incomplete Boolean functions: prioritizing spectra calculation [PDF]
Archives of Control Sciences, 2022 In this paper, a class of linear Boolean functions is analyzed. The Boolean function can be represented as disjoint cubes or in the form of a truth vector.
Piotr Porwik
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Sensors, 2021 In this paper, a new WHT-LWT-GFDM waveform obtained by combining Walsh–Hadamard Transform (WHT), Lifting Wavelet Transform (LWT), and Generalized Frequency Division Multiplexing (GFDM) is presented for use in next-generation wireless communication ...
Meryem Maraş +4 more
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Image Compression Using Walsh Functions
Доклады Белорусского государственного университета информатики и радиоэлектроники, 2022 Currently, image transfer and storage require compression. In this article, the hybrid compression algorithm is used for color/black and white images.
A. A. Budzko +3 more
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