[1] NOVA Univ Lisbon, Sch Sci & Technol, Dept Elect & Comp Engn, P-2829516 Caparica, Portugal
[2] Univ Nova Lisboa, Ctr Technol & Syst, P-2829516 Caparica, Portugal
[3] Associated Lab Intelligent Syst LASI, P-2829516 Caparica, Portugal
[4] Univ Kashan, Dept Elect & Comp Engn, 6 km Ghotbravandi Blvd, Kashan 8731753153, Iran
[5] Univ West Bohemia UWB, Fac Elect Engn, Res & Innovat Ctr Elect Engn RICE, Plzen, Czech Republic