Results 51 to 60 of about 3,442 (165)

An Efficient Joint Frame and Physical Layer Signaling Code Detection Method for DVB-S2

IEEE Access
The Digital Video Broadcasting–Satellite Second Generation (DVB-S2) standard enhances coding and modulation techniques beyond those of DVB-S.
Xin-Qi Liao, Yih-Min Chen
doaj   +1 more source

QROP: Quantum Learning‐Based Identification of Retinopathy of Prematurity

IET Quantum Communication, Volume 6, Issue 1, January/December 2025.
This work aims to classify normal and ROP‐affected retinal images using a quantum neural network (QNN). The proposed system uses the HVDROPDB (2023) dataset fundus images of preterm infants. The proposed system achieves 97.06% accuracy with the HVDROPDB Neo dataset, 91.18% accuracy with the HVDROPDB RetCam dataset, and 85.29% accuracy when evaluated on
Debashis De, Mahua Nandy Pal, Dipankar Hazra   +2 more
wiley   +1 more source

Apparent slow dynamics in the ergodic phase of a driven many-body localized system without extensive conserved quantities

, 2019
We numerically study the dynamics on the ergodic side of the many-body localization transition in a periodically driven Floquet model with no global conservation laws.
Bardarson, Jens H., Bera, Soumya, Lezama, Talía L. M.   +2 more
core   +1 more source

An Adaptive Simplified Travelling Wave‐Based Fault Detection, Classification and Location Estimation Strategy for Series Compensated Transmission Lines

IET Smart Grid, Volume 8, Issue 1, January/December 2025.
This paper proposes an integrated model for fault detection, classification, and location in power transmission systems using voltage signals from a single terminal of a series‐compensated line. Simulations show the model achieves 100% accuracy for fault detection, classification and faulty segment identification, and 99.79% accuracy for fault location
Ehsan Akbari, Milad Samady Shadlu
wiley   +1 more source

Spread Spectrum OFDM-IM With Efficient Precoded Matrix and Low Complexity Detector

IEEE Access
This paper introduces a novel scheme that employs efficient precoded matrices for index modulation orthogonal frequency division multiplexing namely (EP-OFDM-IM).
Ahmed Waheed, Somayeh Mohammady
doaj   +1 more source

Multi-Model Switching Based Fault Detection for the Suspension System of Maglev Train

IEEE Access, 2019
In order to satisfy the requirements of on-line monitoring of the suspension system under complex conditions, a fault detection method for maglev train suspension system based on multi-model switching is proposed.
Ping Wang, Zhiqiang Long, Ning Dang
doaj   +1 more source

SPRIGHT: A Fast and Robust Framework for Sparse Walsh-Hadamard Transform

, 2015
We consider the problem of computing the Walsh-Hadamard Transform (WHT) of some $N$-length input vector in the presence of noise, where the $N$-point Walsh spectrum is $K$-sparse with $K = {O}(N^ )$ scaling sub-linearly in the input dimension $N$ for some ...
Li, Xiao, Bradley, Joseph K., Pawar, Sameer, Ramchandran, Kannan   +3 more
openaire   +2 more sources

Fast algorithm for calculation of both Walsh-Hadamard and Fourier transforms (FWFTs)

Electronics Letters, 1989
In the letter a fast and efficient algorithm is presented for calculating both the DFT and the WHT. This is achieved through the factorisation of the intermediate transform into a product of sparse matrices. The algorithm can implemented using a single butterfly structure, and is amenable for both software and hardware implementations.
Boussakta S, Holt AGJ
openaire   +2 more sources

Blind Recognition Algorithm of Convolutional Code via Convolutional Neural Network

International Journal of Intelligent Systems, Volume 2025, Issue 1, 2025.
Pointing at the vexed question of blind recognition in the convolutional code class, this paper proposes a convolutional code blind identification method via convolutional neural networks (CNNs). First, this algorithm uses the traditional method to generate different convolutional codes, and the feature extraction algorithm adopts the theorem of Euclid’
Pan Deng, Tianqi Zhang, Lianghua Wen, Baoze Ma, Ying Wei, Linhao Cui, Weiwei Jiang   +6 more
wiley   +1 more source

Securing Communication Channels: An Advanced Steganography Approach With Orthogonal Frequency Division Multiplexing (OFDM)

Journal of Electrical and Computer Engineering, Volume 2025, Issue 1, 2025.
Orthogonal frequency division multiplexing (OFDM) is a widely used modern communications technology due to its resistance to selective frequency fading and efficient use of spectrum. However, the security of OFDM signals remains a source of serious concern, especially in the face of network encryption that aims to disrupt communications or extract ...
Ammar Mohammedali Fadhil, Ali Y. Jaber, Rajesh Khanna   +2 more
wiley   +1 more source