Results 81 to 90 of about 26,386 (211)

High‐throughput information extraction of printed specimen labels from large‐scale digitization of entomological collections using a semi‐automated pipeline

open access: yesMethods in Ecology and Evolution, Volume 17, Issue 3, Page 790-804, March 2026.
Abstract Natural history museums curate billions of insect specimens, representing an unparalleled record of biodiversity. Although large‐scale digitization has expanded access to specimen images, extracting label metadata remains a major bottleneck, typically requiring time‐intensive manual transcription.
Margot Belot   +7 more
wiley   +1 more source

Modulation Recognition System of Electromagnetic Interference Signal Based on SDR

open access: yesTelecom
Considering the electromagnetic interference signal in non-cooperative communication, an automatic modulation identification and detection system of electromagnetic interference signal based on software defined radio is proposed.
Wei Dai, Changpeng Ji
doaj   +1 more source

A Jacobian‐Free Newton‐Krylov Method for Cell‐Centred Finite Volume Solid Mechanics

open access: yesInternational Journal for Numerical Methods in Engineering, Volume 127, Issue 3, 15 February 2026.
ABSTRACT This study proposes a Jacobian‐free Newton‐Krylov approach for finite‐volume solid mechanics. Traditional Newton‐based approaches require explicit Jacobian matrix formation and storage, which can be computationally expensive and memory‐intensive.
Philip Cardiff   +3 more
wiley   +1 more source

Implementación de transmisor de televisión basados en SDR para el estándar NTSC

open access: yesAiBi Revista de Investigación, Administración e Ingeniería
La plataforma SDR (radio definida por software) permite implementar diversos sistemas de comunicación flexibles en función de los objetivos y requisitos del usuario, más allá del límite de flexibilidad de la plataforma de hardware existente.
Karla Yohana Sánchez-Mojica   +3 more
doaj   +1 more source

A Communication Monitor for Wireless Sensor Networks Based on Software Defined Radio [PDF]

open access: yes, 2011
Link quality estimation of reliability-crucial wireless sensor networks (WSNs) is often limited by the observability and testability of single-chip radio transceivers.
He, Zhitao, Qin, Yian
core  

Adaptive Wi-Fi channel switching using machine learning and software-defined radio in DFS environments [PDF]

open access: yesE3S Web of Conferences
Dynamic Frequency Selection (DFS) plays a crucial role in ensuring coexistence between Wi-Fi systems and radar operations in the 5 GHz band. This study presents the development of an adaptive DFS system based on Software-Defined Radio (SDR) using HackRF,
Hasanah Rahmawati   +5 more
doaj   +1 more source

Analysis and Experimental Validation of Efficient Coded OFDM for an Impulsive Noise Environment

open access: yesSensors, 2018
The importance of synergy with industry lies in the possibility of experimental validation of the work research results. With Software-Defined Radio (SDR) platforms, it is possible to implement a physical layer and to have tests with hardware in a real ...
Ndéye Bineta Sarr   +4 more
doaj   +1 more source

A Software Radio Based Ionosonde Using GNU Radio [PDF]

open access: yes, 2011
ABSTRACT The Canadian Advanced Digital Ionosonde (CADI) is used to study and investigate the structure and motion o f the ionosphere. The main components of CADI are implemented in microcontroller based digital logic. Due to the increased speed and reconfiguration capability of modem FPGAs (Field Programmable Gate Arrays) and ADCs (Analog-Digital ...
openaire  

Time Reversal Technique Experiments with a Software-Defined Radio

open access: yesTelecom
Time reversal techniques have been investigated for ultrasound and electromagnetic waves. They offer some advantages, particularly in cluttered and inhomogeneous environments, for point-to-point applications.
Marcelo B. Perotoni, Julien Huillery
doaj   +1 more source

Signal Quality of a Wideband SDR Transceiver Under Varying Frequency Deviation

open access: yesTecnura
This study examines the quality of an audio signal received via a Software-Defined Radio (SDR) peripheral for Wideband Frequency Modulation (WBFM). The objective is to evaluate the impact of varying the maximum frequency deviations of the modulator ...
Hernán Paz Penagos
doaj   +1 more source

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