Signal processing & AI.
Passionate about systems grounded in theory and designed with purpose.
Projects
Audio Effects using PortAudio
Real-Time Audio Effects Processor (RT-AEP) using PortAudio API.
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Sound Classification on STM32
Environmental Sound Classification (ESC) CNN implemented on the STM32.
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TDOA Methods
A variety of TDOA methods, including angle of arrival (AoA) and robust algorithms.
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Selected Publications
Investigation of Feature Selection and Pooling Methods for Environmental Sound Classification
P Dehaghani, D Pena, A P Aguiar
2025 14th International Symposium on Image and Signal Processing and Analysis (ISPA)
This paper explores the impact of dimensionality reduction and pooling methods for Environmental Sound Classification (ESC) using lightweight CNNs.
PDF → arXiv →Smart Plant Growth Device with Digital Twin Modeling for Precision Agriculture
D Pena, AP Aguiar, F Lobo Pereira, O Hadj-Abdelkader, H Bouzebiba, P Dehaghani
EP Patent EP4483706A1, 2025
A portable compact device for growing plants.
Espacenet →Energy-Efficient IoT-based Light Control System in Smart Indoor Agriculture
O Hadj Abdelkader, H Bouzebiba, D Pena, AP Aguiar
MDPI Sensors, 2023
Control light system in growth chambers while monitoring the plant factory through wireless communication devices.
PDF → DOI →A Simulation Tool for the Analysis of TDOA Methods
ABF Diniz, DS Pena, VA de Sousa Jr
IPIN 2021 (11th International Conference on Indoor Positioning and Indoor Navigation)
A simulation tool for evaluation and analysis of TDOA methods.
PDF →Characterization of Noise Level Inside a Vehicle Under Different Conditions
D Flor, D Pena, L Pena, V A. de Sousa Jr, A Martins
MDPI Sensors, 2020
Evaluation of noise level inside a vehicle using statistical tools.
PDF → DOI →Acoustic Impulsive Noise Based on Non-Gaussian Models: An Experimental Evaluation
D Pena, C Lima, M Dória, L Pena, A Martins, V Sousa
MDPI Sensors, 2019
Analysis of audio signal corrupted by impulsive noise using non-Gaussian models.
PDF → DOI →View the full list on Google Scholar →