Results 31 to 40 of about 2,434,155 (179)

Fault Detection for Suspension System of Maglev Trains Based on Historical Health Data

IEEE Access, 2020
To overcome the influence of multiple operating conditions for fault detection, this paper proposes a method to detect fault for the suspension system of maglev trains.
Xu Zhou, Ping Wang, Zhiqiang Long
doaj   +1 more source

Semi-automated bed boundary detection and log alignment using fast Walsh–Hadamard transform

Frontiers in Earth Science
Depth mismatches between well logs acquired in different runs (e.g., electrical wireline logging (EWL) versus logging while drilling (LWD)) impede stratigraphic correlation and bias reservoir property estimation.
Sushil Acharya, Karl Fabian, Anis Yazidi, Kjetil Westeng   +3 more
doaj   +1 more source

Prime Number Identification Demonstrated With Quantum Processors Using a New Rescaling‐Based Noise Mitigation Technique

Advanced Quantum Technologies, Volume 9, Issue 6, June 2026.
Prime number identification is implemented on IBM Quantum processors through entanglement dynamics. The PIED protocol encodes arithmetic information in the reduced purity of a bipartite quantum system, whose Fourier spectrum reveals prime/composite signatures.
Victor F. dos Santos, Victor P. Brasil, Pedro A. S. Contri, Jonas Maziero   +3 more
wiley   +1 more source

Natural-ordered complex Hadamard transform

, 2009
This paper presents a new transform known as natural-ordered complex Hadamard transform (NCHT) which is derived from the Walsh–Hadamard transform (WHT) through the direct block matrix operation.
Ng, Boon Poh, Aung, Aye, Boon Poh Ng, Aye Aung   +3 more
core   +1 more source

Elucidating the Physical and Mathematical Properties of the Prouhet‐Thue‐Morse Sequence in Quantum Computing

Annalen der Physik, Volume 538, Issue 4, April 2026.
The Prouhet‐Thue‐Morse (PTM) sequence emerges as a unifying thread across quantum error correction, noise‐resistant memories, spin‐chain dynamics, quantum chaos, and Dirichlet links to the Riemann zeta function. Mapping PTM‐encoded logical states onto qubit and qudit architectures uncovers symmetry‐protected resilience and multifractal signatures ...
Denis Janković, Rémi Pasquier, Jean‐Gabriel Hartmann, Paul‐Antoine Hervieux   +3 more
wiley   +1 more source

Remarks on numerical approximation of Volterra integral equations by Walsh–Hadamard transform

Results in Applied Mathematics
Walsh functions form a piecewise-constant orthonormal basis that is particularly well-suited for digital computation and signal approximation. Nevertheless, the direct evaluation of Walsh transforms for discrete functions becomes computationally ...
Farrukh Mukhamedov, Ushangi Goginava, Akaki Goginava, James Wheeldon   +3 more
doaj   +1 more source

Genetic Algorithm‐Optimized Recurrent Neural Network for Channel Estimation in RIS‐Aided MIMO System With Rake Receiver

Journal of Electrical and Computer Engineering, Volume 2026, Issue 1, 2026.
The integration of reconfigurable intelligent surfaces (RIS) into multiple‐input multiple‐output (MIMO) systems offers transformative potential for enhancing spectral efficiency and mitigating channel impairments. However, efficient and accurate channel estimation (CE) remains a critical challenge due to multipath propagation, high dimensionality, and ...
Kevin M. Mwongera, Philip K. Langat, Franklin M. Manene, Pramita Mishra   +3 more
wiley   +1 more source

Estudo da transformada de Walsh-Hadamard aplicada à transmissão OFDM [PDF]

, 2006
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia Elétrica.Esta dissertação apresenta um estudo da aplicação da Transformada de Walsh-Hadamard (WHT) em diferentes sistemas OFDM ...
Doniak, Marcio Henrique
core  

Engineering Compressed Matrix Multiplication with the Fast Walsh-Hadamard Transform

CoRR
23 ...
Joel Andersson 0004, Matti Karppa
openaire   +2 more sources

Comparing GFDM With OFDM for Use in 6G Communication From a New Perspective

Journal of Electrical and Computer Engineering, Volume 2026, Issue 1, 2026.
The most important challenges facing 6G communication systems are the large amount of data and low latency as compared to previous generations. Therefore, it has become necessary to use advanced technologies to meet the requirements of 6G wireless communication systems.
Mohammed Azher Therib, Saad Saffah Hreshee, Martin Haardt   +2 more
wiley   +1 more source