Application of UAV in search and rescue actions in underground mine—A specific sound detection in noisy acoustic signal

P Zimroz, P Trybała, A Wróblewski, M Góralczyk… - Energies, 2021 - mdpi.com
The possibility of the application of an unmanned aerial vehicle (UAV) in search and rescue
activities in a deep underground mine has been investigated. In the presented case study, a …

A smart system for environmental parameter monitoring in underwater archaeological sites

M Lupia, G Gagliardi, G Cario, F Cicchello Gaccio… - Electronics, 2023 - mdpi.com
In this paper, we present a prototype for the remote monitoring of underwater archaeological
sites. The system aims to provide autonomous and real-time data collection from …

On biased harmonic signal estimation: Application to electric power grid monitoring

H Ahmed, R Ushirobira, D Efimov - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
Parametric estimation of a biased harmonic signal is a significant technical challenge for
many engineering applications. Such a problem is particularly important for electric utility …

A time-frequency joint time-delay difference estimation method for signal enhancement in the distorted towed hydrophone array

C Zhu, S Fang, Q Wu, L An, X Luo, H Cao - Remote Sensing, 2021 - mdpi.com
To acquire the enhanced underwater ship-radiated noise signal in the presence of array
shape distortion in a passive sonar system, the phase difference of the line-spectrum …

Estimation of azimuth and elevation for multiple acoustic sources using tetrahedral microphone arrays and convolutional neural networks

S Sakavičius, A Serackis - Electronics, 2021 - mdpi.com
A method for multiple acoustic source localization using a tetrahedral microphone array and
a convolutional neural network (CNN) is presented. Our method presents a novel approach …

Optimal Sensor Placement of Acoustic Sensor for Compressor Blade Crack Detection based on Multi-objective Optimization

D Song, T Ma, J Shen, F Xu - 2022 Global Reliability and …, 2022 - ieeexplore.ieee.org
Nowadays, acoustic sensors have been widely applied for crack detection of compressor
blades. As the accuracy is mainly affected by signal quality, the optimal sensor placement …