Pneumatic position servo control considering the proportional valve zero point. - Hai-Peng Ren; Pei-Fen Gong; Jie Li (ICM, 2017)

Adaptive control of hydraulic position servo system using output feedback. - Hai-Peng Ren; Pei-Fen Gong (J. Syst. Control. Eng., 2017)