1. Research Engineer, National Institute of Telecommunications, Santa Rita do Sapucaí, Minas Gerais 37540-000, Brazil (corresponding author). ORCID: .
2. Professor, Federal Univ. of Itajubá, Itajubá, Minas Gerais 375400-903, Brazil.
3. Professor, Dept. of Electrical Engineering, Federal Univ. of Maranhão, São Luís, Maranhão 65065-545, Brazil.
4. Research Assistant, Federal Univ. of Itajubá, Itajubá, Minas Gerais 375400-903, Brazil.