Finite time extended state observer based nonsingular fast terminal sliding mode control of flexible-joint manipulators with unknown disturbance. - Mengqing Hong; Xiutao Gu; Liaoxue Liu; Yu Guo (J. Frankl. Inst., 2023)

Fast fixed-time extended state observer based command filtering backstepping control of free-flying flexible-joint space robots. - Mengqing Hong; Xiutao Gu; Lingling Xia; Yu Guo (J. Frankl. Inst., 2024)

Prescribed performance fixed-time tracking control based on extended state observer for dual-arm space robot with disturbances. - Mengqing Hong; Xiutao Gu; Liaoxue Liu; Qun Wang; Yu Guo (Trans. Inst. Meas. Control, 2025)