Gain margin. PID tuning. guaranteed performance. unstable zeroBucz, Štefan, 1978- PID controller design for systems with unstable zero using the SWT method / aut. Štefan Bucz, Alena Kozáková. Kozáková, Alena, 1960- In: ACCS/PEIT 2015 International conference on advanced control circuits and systems (ACCS’015). -- Cairo : Electronics Research Institute, 2015. -- CD-ROM, [6] s.