Results 61 to 70 of about 5,051 (212)

A Unified Vector Electromagnetic Framework for Ionospheric Scintillation and Polarization Effects in GNSS

Radio Science, Volume 61, Issue 6, June 2026.
Abstract The ionosphere imposes coupled amplitude, phase, and polarization distortions on trans‐ionospheric Global Navigation Satellite System (GNSS) signals, reflecting the structure and dynamics of electron‐density irregularities. Classical weak‐scatter theory provides a mature framework for interpreting amplitude and phase scintillation, but these ...
T. Durgonics, S. S. Beeck
wiley   +1 more source

bZIP Transcription Factor PobZIP8 Positively Mediates Heat Stress Tolerance and Negatively Regulates the Growth and Development of Pleurotus ostreatus

Microbial Biotechnology, Volume 19, Issue 6, June 2026.
PobZIP8 from Pleurotus ostreatus enhances heat stress tolerance while negatively regulating fruiting body development, providing a key target for genetic improvement of edible fungi. ABSTRACT Pleurotus ostreatus is a globally cultivated edible and medicinal fungus, but its growth and yield are significantly affected by heat stress during cultivation ...
Yi Zhou, Jinlong Pan, Yuanyuan Zhou, Zihao Li, Hui Zhu, Xiaoxue Liu, Wenqiang Xie, Yajie Zou   +7 more
wiley   +1 more source

Downward Positive Leader Propagation Modes and Their Effects in Positive Cloud‐to‐Ground Lightning Characteristics

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 9, 16 May 2026.
Abstract The return stroke in a cloud‐to‐ground (CG) flash is initiated when the downward leader either reaches the ground or connects with an upward leader from a grounded structure. Unlike negative downward leaders, which typically propagate in a highly branched manner, downward positive leaders (DPLs) can propagate either in a branched or unbranched
Marcelo M. F. Saba, Diego R. R. da Silva, Ivan T. Cruz, Tagianne P. da Silva, Paola B. Lauria, José Claudio O. Silva, Gabriel S. Diniz, Tom A. Warner, Rasha U. Abbasi, João Carlos M. Alves, Giovane B. Suss, Miguel B. Guimarães Neto, Listz S. Araujo, Ny T. Kieu   +13 more
wiley   +1 more source

Marmote SDR: Experimental Platform for Low-Power Wireless Protocol Stack Research

Journal of Sensor and Actuator Networks, 2013
Over the past decade, wireless sensor network research primarily relied on highly-integrated commercial off-the-shelf radio chips. The rigid silicon implementation of the radio stack restricted access to the lower layers; thus, research focused mainly on
Ákos Lédeczi, Péter Völgyesi, Sándor Szilvási, Benjámin Babják   +3 more
doaj   +1 more source

Direct Laser Interference Patterning of Nickel Foils for Enhanced Bubble Nucleation in Oxygen‐Oversaturated Environment

Advanced Energy and Sustainability Research, Volume 7, Issue 5, May 2026.
This study investigates the use of direct laser interference patterning (DLIP) to enhance oxygen bubble nucleation on nickel surfaces by creating periodic microstructures with controlled spatial periods and depths. The results demonstrate that smaller spatial periods (Λ) and deeper features significantly improve bubble density and detachment dynamics ...
Fabian Ränke, Julian Heinrich, Marcos Soldera, Karin Schwarzenberger, Kerstin Eckert, Robert Baumann, Andrés Fabián Lasagni   +6 more
wiley   +1 more source

Electromagnetic Environment Simulation Software Design and Its Application Using DRFM Techniques on Software Defined Radio

IEEE Access
As electronic warfare (EW) becomes increasingly significant in modern battlefields, the demand for simulation environments in the development of EW systems rises.
Serdar Kaya, Hayrullah Yildiz
doaj   +1 more source

Case Studies of Attacks over Adaptive Modulation Based Tactical Software Defined Radios

Journal of Computer Networks and Communications, 2012
This paper presents case studies of attacks aimed at tactical software defined radios based on a classification with the most common sources of vulnerabilities, classes of attacks, and types of intrusions that military radio sets may suffer. Besides that,
David Fernandes Cruz Moura, Fabricio Alves Barbosa da Silva, Juraci Ferreira Galdino   +2 more
doaj   +1 more source

DEKOMPOSISI TUGAS-TUGAS SOFTWARE-DEFINED RADIO (SDR)

JURNAL TEKNOLOGI TECHNOSCIENTIA, 2019
This paper addresses decomposition of the tasks of Software-Defined Radio (SDR) computation by taking Gaussian Minimum Shift Keying (GMSK) as a case study. The aim of this research was to produce a task graph of the SDR that was needed in scheduling of distributed computing with task parallelism using genetics algorithm.
openaire   +1 more source

Software Defined Radio (SDR) Passive Radar Implementations

, 2023
International audienceSoftware Defined Radio (SDR) provides the stability, flexibility and reconfigurability of software applied to discrete-time signal processing of radiofrequency signals.
Friedt, Jean-Michel
core  

Construction of Noise Reduction and Sound Quality Optimization Model for Music Transmission Signals Based on Deep Learning

Engineering Reports, Volume 8, Issue 5, May 2026.
The study collects typical music samples and multiple types of noise data, preprocesses the signals using time‐frequency domain feature extraction methods, and on this basis designs a deep neural network structure that integrates convolutional neural networks and perception optimization mechanisms.
Chao Jiang, Junfang Liang
wiley   +1 more source