1. Institute of Metrology, Electronics and Computer Science, University of Zielona Gora, ul. Licealna 9, 65-417 Zielona Gora, Poland
2. Department of Infocommunications, Kharkov National University of Radio Electronics, 61000 Kharkov, Ukraine
3. Department of Technology, The Jacob of Paradies University, ul. Teatralna 25, 66-400 Gorzow Wielkopolski, Poland