1. Department of Electrical Engineering, Faculty of Military Technology, University of Defence Brno, 66210 Brno, Czech Republic
2. IT Infrastructure Division, Institute of Computer Science, Masaryk University, 60177 Brno, Czech Republic
3. Department of Telecommunications, Faculty of Electrical Engineering and Communication, Brno University of Technology, 60190 Brno, Czech Republic
4. Department of Radio Electronics, Faculty of Electrical Engineering and Communication, Brno University of Technology, 60190 Brno, Czech Republic