RAO, P. Analysis and Classification of Communication Signals. Defence Science Journal, [S. l.], v. 35, n. 3, p. 367–374, 2014. DOI: 10.14429/dsj.35.6030. Disponível em: https://publications.drdo.gov.in/ojs/index.php/dsj/article/view/6030. Acesso em: 6 jul. 2025.