1. Department of Electricity, Federal University of Amazonas, Manaus, Brazil
2. Univ. Bordeaux, CNRS, IMS, UMR 5218, Talence, France
3. Institut de Robòtica i Informàtica Industrial, CSIC-UPC, Universitat Politècnica de Catalunya-BarcelonaTech, Barcelona, Spain
4. Department of Electronics Engineering, Federal University of Minas Gerais, Belo Horizonte, Brazil