Publications

[24] Breno Gomes Storch, Rigel P. Fernandes e Allyson Andrade da Silva, “Estudo comparativo de algoritmos aplicados à navegação de veículos de superfície não tripulados,” in XXVII Simpósio de Aplicações Operacionais em Áreas de Defesa - SIGE 2025, São José dos Campos, SP, Brazil, 23-25 de setembro 2025. (Submitted in June 2025)

[23] Michel Lutegar, André Coelho, Marceu Filho, Rigel P. Fernandes, Thiago Silva de Souza, and Clayton J. A. Silva, “Investigating image pre-processing techniques to enhance Brazilian license plate recognition,” in XVII Brazilian Conference on Computational Intelligence, Belo Horizonte, MG, Brazil, 27-30 October 2025, Congresso Brasileiro de Inteligência Computacional. (Accepted for publication)

[22] Caio Rangel Fernandes, Marcio Moreira do Nascimento Filho, Filipe Oliveira de Saldanha da Gama, Rafael Senra Donner Jorge, Rigel P. Fernandes, Thiago Silva de Souza, and Clayton Jones Alves da Silva, “A Low-Cost IoT-Driven Reuse of Condensate Water for Automated Plant Irrigation,” in XLIII Brazilian Symposium on Telecommunications and Signal Processing - SBrT 2025, September 29TH to October 2ND, NATAL, RN, Brazil, Sociedade Brasileira de Telecomunicações. (Accepted for publication)

[21] Paula Luiza Rocha de Oliveira, Guilherme Pinto Weil Bastos, Gabriel Lacerda da Fontoura, Maria Giulia Pessanha, William Fagundes, Rigel P. Fernandes, and Clayton J. A. Silva, “IoT-Based Anti-Theft Alarm Using Reed Switch and MQTT Protocol,” in XLIII Brazilian Symposium on Telecommunications and Signal Processing - SBrT 2025, September 29TH to October 2ND, NATAL, RN, Brazil, Sociedade Brasileira de Telecomunicações. (Accepted for publication)

[20] André Coelho, Marceu Filho, Michel Lutegar, Rigel P. Fernandes, Thiago Silva de Souza, and Clayton J. A. Silva, “Comparative Performance Analysis of LoRa and WiFi Technologies for CanSat Communication Systems,” in XLIII Brazilian Symposium on Telecommunications and Signal Processing - SBrT 2025, September 29TH to October 2ND, NATAL, RN, Brazil, Sociedade Brasileira de Telecomunicações. (Accepted for publication)

[19] Hudson Assumpção, Rigel P. Fernandes, Anna Beatriz Nunes Barbosa, and Pedro Henrique Portugal Gusman, “Vision-Based fatigue detection using a smartphone,” in XLIII Brazilian Symposium on Telecommunications and Signal Processing - SBrT 2025, September 29TH to October 2ND, NATAL, RN, Brazil, Sociedade Brasileira de Telecomunicações. (Accepted for publication)

[18] Raphael Serraino Theil Meres, Thiago Silva de Souza, Rigel P. Fernandes, and Cassius M. do C. Figueiredo, “Stemuc Audio Forge: AI-based Music Source Separation Using Demucs and CUDA Acceleration,” in XLIII Brazilian Symposium on Telecommunications and Signal Processing - SBrT 2025, September 29TH to October 2ND, NATAL, RN, Brazil, Sociedade Brasileira de Telecomunicações. (Accepted for publication)

[17] Caio de Souza de Medeiros e Rigel P. Fernandes, “Detecção de Vagas de Estacionamento Baseada em Visão Computacional com Mínima Intervenção Humana,” in XLIII Brazilian Symposium on Telecommunications and Signal Processing - SBrT 2025, September 29TH to October 2ND, NATAL, RN, Brazil, Sociedade Brasileira de Telecomunicações. (Accepted for publication)

[16] Filipe Oliveira de Saldanha da Gama, Rafael Senra Donner Jorge, Caio Rangel Fernandes, Marcio Moreira do Nascimento Filho, Rigel P. Fernandes, and Thiago Silva de Souza, “A Computer Vision-Based System for Monitoring Liveness in Remote Work,” in XLIII Brazilian Symposium on Telecommunications and Signal Procesing - SBrT 2025, September 29TH to October 2ND, NATAL, RN, Brazil, Sociedade Brasileira de Telecomunicações. (Accepted for publication)

[15] Hudson Guilherme Vieira Assumpção, Caio de Souza de Medeiros, Gabriel dos Santos Perrota Duarte, Henrique Barbosa Dantas Rolan, and Rigel Procópio Fernandes, “Estacionamento inteligente: uma comparação entre sensores ultrassônicos e visão computacional,” in XLII Simpósio Brasileiro de Telecomunicações e Processamento de Sinais, Belém, PA, Brazil, 01-04 October 2024, Sociedade Brasileira de Telecomunicações. Available: http://doi.org/10.14209/sbrt.2024.1571036315 Copy BibTeX

[14] José Antonio Apolinário, Jr., António Luiz Lopes Ramos, Rigel Procópio Fernandes, Julio Cesar Duarte, and Marcelo Nogueira de Sousa, “Exploiting reverberation fingerprint for a neural network based acoustic emitter localization,” in 2024 10th International Conference on Control, Decision and Information Technologies (CoDIT), Valletta, Malta, 1-4 July 2024, IEEE, pp. 1–6. Available: http://doi.org/10.1109/CoDIT62066.2024.10708420 Copy BibTeX

[13] Rigel Procópio Fernandes, José Antonio Apolinário, Jr., and José Manoel de Seixas, “A reduced complexity acoustic-based 3D DoA estimation with zero cyclic sum,” Sensors, vol. 24, no. 7, pp. 2344, 2024. Available: https://doi.org/10.3390/s24072344 Copy BibTeX

[12] Rigel Procópio Fernandes, José Antonio Apolinário, Jr., and José Manoel de Seixas, “Enhancing TDE-based drone DoA estimation with genetic algorithms and zero cyclic sum,” in XVI Brazilian Conference on Computational Intelligence, Salvador, BA, Brazil, 8-11 October 2023, Congresso Brasileiro de Inteligência Computacional. Available: http://doi.org/10.21528/CBIC2023-115 Copy BibTeX

[11] Rigel Procópio Fernandes, José Antonio Apolinário, Jr., António Luiz Lopes Ramos, and José Manoel de Seixas, “Applying the majority voting rule in acoustic detection and classification of drones,” in XXXIV Simpósio Brasileiro de Telecomunicações e Processamento de Sinais, Fortaleza, CE, Brazil, 26-29 September 2021, Sociedade Brasileira de Telecomunicações. Available: https://doi.org/10.14209/sbrt.2021.1570726624 Copy BibTeX

[10] Marcelo Nogueira de Sousa, Ricardo Sant’Ana, Rigel Procópio Fernandes, Julio Cesar Duarte, José Antonio Apolinário, Jr., and Reiner Thomä, “Improving the performance of a radio-frequency localization system in adverse outdoor applications,” Journal on Wireless Communications and Networking, vol. 1, pp. 123, may 2021. Available: https://doi.org/10.1186/s13638-021-02001-6 Copy BibTeX

[9] Rigel Procópio Fernandes and José Antonio Apolinário, Jr., “Underwater target classification with optimized feature selection based on genetic algorithms,” in XXXVIII Simpósio Brasileiro de Telecomunicações e Processamento de Sinais, Florianópolis, SC, Brazil, 22-25 November 2020, SBrT. Available: http://doi.org/10.14209/SBRT.2020.1570658075 Copy BibTeX

[8] Felipe Gonçalves Serrenho, José Antonio Apolinário, Jr., António Luiz Lopes Ramos, and Rigel Procópio Fernandes, “Gunshot airborne surveillance with rotary wing UAV-embedded microphone array,” Sensors, vol. 19, no. 19, pp. 4271, 2019. Available: https://doi.org/10.3390/s19194271 Copy BibTeX

[7] Rigel Procópio Fernandes, António Luiz Lopes Ramos, and José Antonio Apolinário, Jr., “Airborne DoA estimation of gunshot acoustic signals using drones with application to sniper localization systems,” in Sensors, and Command, Control, Communications, and Intelligence (C3I) Technologies for Homeland Security, Defense, and Law Enforcement Applications XVI, Anaheim, CA, United States, 5 May 2017, SPIE, vol. 10184, pp. 51–57. Available: https://doi.org/10.1117/12.2262782 Copy BibTeX

[6] Rigel Procópio Fernandes, José Antonio Apolinário, Jr., and António Luiz Lopes Ramos, “Bearings-only aerial shooter localization using a microphone array mounted on a drone,” in 2017 IEEE 8th Latin American Symposium on Circuits & Systems (LASCAS), Bariloche, Argentina, 20-23 February 2017, IEEE, pp. 1–4. Available: https://doi.org/10.1109/LASCAS.2017.7948081 Copy BibTeX

[5] Rigel Procópio Fernandes, Angelo Marcio Cardoso Ribeiro Borzino, António Luiz Lopes Ramos, and José Antonio Apolinário, Jr., “Investigating the potential of UAV for gunshot DoA estimation and shooter localization,” in XXXIV Simpósio Brasileiro de Telecomunicações e Processamento de Sinais, Santarém, Brazil, 30 August - 2 September 2016, SBrT, pp. 383–387. Available: http://doi.org/10.14209/sbrt.2016.52 Copy BibTeX

[4] Rigel Procópio Fernandes, Edilson Celestino Santos, António Luiz Lopes Ramos, and José Antonio Apolinário, Jr., “A first approach to signal enhancement for quadcopters using piezoelectric sensors,” in Proceedings of The 20th International Conference on Transformative Science and Engineering, Business and Social Innovation, Fort Worth, TX, United States, 1-5 November 2015, Society For Design And Process Science. SDPS, pp. 536–541. Available: https://www.researchgate.net/publication/299126527 Copy BibTeX

[3] Marcelo Carvalho Fernandes, Antonio Juarez Alencar, Eber Assis Schmitz, Monica Ferreira da Silva, and Rigel Procópio Fernandes, “Acknowledging the effect of the depreciation of tangible and intangible benefits upon the evaluation of e-gov projects,” Journal of Software, vol. 10, no. 7, pp. 842–868, 2015. Available: https://doi.org/10.17706/jsw.10.7.842-868 Copy BibTeX

[2] Rigel Procópio Fernandes, Antonio Juarez Alencar, Eber Assis Schmitz, and Alexandre Luis Correa, “Analysing IT investments in the public sector: A project portfolio approach,” Journal of Software, vol. 9, no. 7, pp. 1687–1700, 2014. Available: https://doi.org/10.4304/jsw.9.7.1687-1700 Copy BibTeX

[1] Antonio Juarez Alencar, Rigel Procópio Fernandes, Eber Assis Schmitz, and Alexandre Luis Correa, “Maximizing the appropriation of the intangible benefits yielded by IT investments in the public sector,” Journal of Software, vol. 8, no. 7, pp. 1537–1549, 2013. https://doi.org/10.4304/jsw.8.7.1537-1549 Copy BibTeX