Switched observer based impedance control for an assistive robotic cart under unknown parameters. - Hosun Lee; Geunho Lee; Chulmin Kwon; Naoto Noguchi; Nak Young Chong (RO-MAN, 2012)

Development of an easy-to-manipulate assistive cart system using an observer based impedance control. - Hosun Lee; Chulmin Kwon; Geunho Lee; Sungmoon Jeong; Nak Young Chong (URAI, 2013)