title: Combined gain and phase margins.
abstract: In this note, the limitations of conventional or separate gain or phase margin are shown. Then, the combined gain and phase margins are introduced to overcome the limitations and suit both stable and unstable systems. A simple method for their computation is presented and their applications in stabilization is demonstrated.
authors.affiliation: School of Information Science and Engineering, Central South University, Changsha, China.
authors.forename: Zhuo-Yun
authors.initials: ZY
authors.lastname: Nie
authors.forename: Qing-Guo
authors.initials: QG
authors.lastname: Wang
authors.forename: Min
authors.initials: M
authors.lastname: Wu
authors.forename: Yong
authors.initials: Y
authors.lastname: He
mesh_terms: D000465:Algorithms; D004867:Equipment Design; D007221:Industry / Q000295:instrumentation*