Results 11 to 20 of about 3,442 (165)
Fast Walsh–Hadamard–Fourier Transform Algorithm
IEEE Transactions on Signal Processing, 2011 An efficient fast Walsh-Hadamard-Fourier transform algorithm which combines the calculation of the Walsh-Hadamard transform (WHT) and the discrete Fourier transform (DFT) is introduced. This can be used in Walsh-Hadamard precoded orthogonal frequency division multiplexing systems (WHT-OFDM) to increase speed and reduce the implementation cost.
Boussakta S, Monir H
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Fast reconstructed and high-quality ghost imaging with fast Walsh–Hadamard transform
Photonics Research, 2016 In this paper, we propose a ghost imaging scheme with fast Walsh–Hadamard transform, named GIFWHT. In the scheme, Walsh–Hadamard pattern pairs are used to illuminate an object to generate pairs of detection results, and the corresponding differential detection result is used as the result as that from the conventional bucket detector. By performing the
Le Wang, Shengmei Zhao
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Optimized Fast Walsh–Hadamard Transform on GPUs for non-binary LDPC decoding [PDF]
Parallel Computing, 2014 We analyse the role of the FWHT under the non-binary LDPC decoding problem.We quantify the trade-off between memory bank conflicts and the throughput on GPUs.The FWHT employs radix-n approaches tuned to the number of shared memory banks.The FWHT was tuned for both 16 and 32 shared memory bank GPU architectures.
Andrade, João +2 more
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A Method for Diagnosing Gearboxes of Means of Transport Using Multi-Stage Filtering and Entropy [PDF]
Entropy, 2019 The paper presents a method of processing vibration signals which was designed to detect damage to wheels of gearboxes for means of transport. This method uses entropy calculation, and multi-stage filtering calculated by means of digital filters and the ...
Tomasz Figlus
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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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A Novel Transfer Learning-Based Hybrid EEG-fNIRS Brain-Computer Interface for Intracerebral Hemorrhage Rehabilitation. [PDF]
Adv Sci (Weinh)The study has developed the first clinically validated hybrid EEG‐fNIRS brain‐computer interface fusion framework that systematically overcomes cross‐subject generalization barriers through a novel Wasserstein metric‐driven neural template selection mechanism.
Chen D +18 more
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Integral Attacks on Midori64 [PDF]
Jisuanji gongcheng, 2021 Proven to be an important key recovery method,the technique of integral attacks has been widely used in the analysis of block ciphers.This paper describes an attempt at integral attacks on the lightweight block cipher,Midori64.Three 6-round zero ...
WANG Chao, CHEN Huaifeng
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New fast Walsh–Hadamard–Hartley transform algorithm
International Journal of Electrical and Computer Engineering (IJECE), 2023 <span lang="EN-US">This paper presents an efficient fast Walsh–Hadamard–Hartley transform (FWHT) algorithm that incorporates the computation of the Walsh-Hadamard transform (WHT) with the discrete Hartley transform (DHT) into an orthogonal, unitary single fast transform possesses the block diagonal structure. The proposed algorithm is implemented
Suha Suliman Mardan, Mounir Taha Hamood
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Cache miss analysis of WHT algorithms [PDF]
Discrete Mathematics & Theoretical Computer Science, 2005 On modern computers memory access patterns and cache utilization are as important, if not more important, than operation count in obtaining high-performance implementations of algorithms.
Mihai Furis +2 more
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New Orthogonal Transforms for Signal and Image Processing
Applied Sciences, 2021 In the paper, orthogonal transforms based on proposed symmetric, orthogonal matrices are created. These transforms can be considered as generalized Walsh–Hadamard Transforms.
Andrzej Dziech
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