1. Graduate Program in Electrical Engineering, Federal University of Minas Gerais, Federal Institute of Southeast Minas Gerais,Department of Technological Education,Minas Gerais,Brasil
2. Amazonas State University,Department of Control and Automation Engineering,Amazonas,Brazil
3. California Polytechnic State University,Department of Aerospace Engineering,CA,USA,93407
4. Federal University of Minas Gerais,Department of Electronics Engineering,Minas Gerais,Brazil