Attitude Tracking of Rigid Spacecraft With Bounded Disturbances

Disturbance observer-based second order sliding mode attitude tracking control for flexible spacecraft

“…Several researches have incorporated ESO into SMC method to obtain strong robustness. In Xia et al [32] attitude tracking control scheme was developed using SMC and ESO was applied to estimate bounded disturbance. In [16] the ESO technique and the control Lyapunov function approach are merged to design an attitude controller under actuator saturation.…”

Fuzzy Active Disturbance Rejection Attitude Control of Spacecraft with Unknown Disturbance and Parametric Uncertainty

“…One of the major problems encountered in practice for the design of attitude controller is how to compensate for the external disturbances and parametric uncertainties. Various new control methods have been proposed to address the issue, such as backstepping control, adaptive control, sliding mode control and so forth [1][2][3][4][5][6]. Chen [2] proposed an adaptive control approach to deal with the attitude control and disturbance rejection problem of rigid spacecraft for a class of persistent disturbances with unknown phase angles and amplitudes but known frequencies.…”

Nonlinear disturbance observer-based control for multi-input multi-output nonlinear systems subject to mismatching condition

“…As a practical alternative approach, disturbance observer based control (DOBC) has been proved to be effective in compensating the effects of unknown external disturbances and model uncertainties in control systems and received a great deal of attention in control society, for example, the last decade's development of DOBC can be seen from Chen, Komada, and Fukuda (2000), , Chen (2003), Guo and Chen (2005), Xia et al (2007), Yoo, Yau, and Gao (2007), Aldeen and Sharma (2008), Shim (2008, 2009), Fujisaki and Befekadu (2009), Han (2009), Shim and Jo (2009), Guo (2009, 2010), Xia et al (2011), , and the references therein. The major merit of the DOBC is that the robustness of the closed-loop system is obtained without sacrificing its nominal control performance (Back and Shim 2008).…”