Results 21 to 30 of about 202 (125)

A New‐Trend Model‐Based to Solve the Peak Power Problems in OFDM Systems

Modelling and Simulation in Engineering, Volume 2008, Issue 1, 2008., 2008
The high peak to average power ration (PAR) levels of orthogonal frequency division multiplexing (OFDM) signals attract the attention of many researchers during the past decade. Existing approaches that attack this PAR issue are abundant, but no systematic framework or comparison between them exists to date.
Ashraf A. Eltholth, Adel R. Mekhail, A. Elshirbini, M. I. Dessouki, A. I. Abdelfattah, Adel Alimi   +5 more
wiley   +1 more source

Circuit Synthesis from Fibonacci Decision Diagrams

VLSI Design, Volume 14, Issue 1, Page 23-34, 2002., 2002
In decision diagrams (DDs) methods for circuit synthesis, it is possible to directly transfer a DD for a given function f into a network realizing f by the replacement of non‐terminal nodes in the DD with the corresponding circuit modules. The chief bottleneck of mapping a DD into a network is the inherent feature that the depth of the network produced,
Radomir S. Stanković, Jaakko Astola, Milena Stanković, Karen Egiazarian   +3 more
wiley   +1 more source

Enhancing dysarthria speech feature representation with empirical mode decomposition and Walsh-Hadamard transform [PDF]

, 2023
Dysarthria speech contains the pathological characteristics of vocal tract and vocal fold, but so far, they have not yet been included in traditional acoustic feature sets. Moreover, the nonlinearity and non-stationarity of speech have been ignored.
Duan, Shufei, Zhang, Wei, Dingam, Camille, Zhu, Ting, Liang, Huizhi   +4 more
core   +1 more source

Algorithm Development for Distributed Memory Multicomputers Using CONLAB

Scientific Programming, Volume 1, Issue 2, Page 185-203, 1992., 1992
CONLAB (CONcurrent LABoratory) is an environment for developing algorithms for parallel computer architectures and for simulating different parallel architectures. A user can experimentally verify and obtain a picture of the real performance of a parallel algorithm executing on a simulated target architecture.
Peter Jacobson, Bo Kågström, Mikael Rännar   +2 more
wiley   +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

New fast Walsh–Hadamard–Hartley transform algorithm [PDF]

, 2023
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 ...
Hamood, Mounir Taha, Mounir Taha Hamood, Suha Suliman Mardan, Mardan, Suha Suliman   +3 more
core   +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

Dysarthria speech feature enhancement algorithm by combining empirical mode decomposition and fast Walsh-Hadamard transform / 结合 EMD 和 FWHT 的构音障碍语音特征增强算法

\ua9 2025 Editorial Office of Technical Acoustics. All rights reserved. Dysarthria speech contains the pathological characteristics of the vocal tract and vocal folds.
Zhang W, Dingam C, Liang H, Duan S, Zhu T   +4 more
core   +3 more sources

Universal Joint Maximum Likelihood Frame Synchronization and PLS Decoding for DVB-S2X Systems

Signals
Compared to DVB-S2, DVB-S2X features a more intricate signaling structure. These signaling fields are employed not only in standard frames but are also frequently utilized within superframe structures.
Xin-Qi Liao, Yih-Min Chen
doaj   +1 more source

Cancelable speaker identification system for the handicapped access to healthcare networks

Journal of Electrical Systems and Information Technology
One of the most promising applications of speaker recognition technology is to assist individuals with disabilities. With the rapid advancement of the Internet of Things (IoT), integrating speaker recognition into IoT devices is becoming increasingly ...
Samia A. El-Moneim Kabel, Walid El-Shafai, Naglaa F. Soliman, Reem Alkanhel, Fathi E. Abd El-Samie   +4 more
doaj   +1 more source