Dynamics and Adaptive Sliding Mode Control of a Mass-Actuated Fixed-Wing UAV

Auto-Landing of Moving-Mass Actuated Unmanned Aerial Vehicles Based on Linear Active Disturbance Rejection Control

“…Compared to the dual-slider scheme in literature [24], the rudder was retained in the single-slide scheme. This kind of scheme not only reduces the manufacturing difficulty of the airframe, but also alleviates the space constraint problem, which in turn improves the control capability of the vehicle by installing a larger slider [26]. Considering the special characteristics of the MAUAV, the definition of the body frame is given first.…”

“…At the same time, researchers have also used AI technology to control MAUAVs. Qiu et al [26] proposed a fixed-wing UAV structure with a combination of rudder, elevator, and movable slider to control the attitude. The offset of the internal slider is able to generate a rolling moment to control the roll motion of the UAV, thus the parameters of the slider are important factors affecting the dynamic performance of the vehicle.…”

“…The former includes three controllers of altitude, attitude, and slider to provide the expected driving force for slider and expected deflections for rudder and elevator; the latter establishes a throttle command to maintain a steady forward velocity, due to the fact that accurate control of forward velocity is essential for an efficient and safe landing. In addition, compared with the attitude control of the same type of UAV [26], this paper considers the influence of wind disturbance during the whole landing process, which is more in line with the actual situation.…”

Adjustment mechanism with sliding mode for adaptive PD controller applied to unmanned fixed-wing MAV altitude

“…Model uncertainties and external gust disturbances are considered during designing the attitude control system for UAVs and feedback linearization and MRAC are integrated to design the attitude control system for a fixed-wing UAV. Qiu et al [17] is presented the dynamics and attitude control of a mass-actuated fixed-wing UAV (MFUAV) with an internal slider. Based on the derived mathematical model of the MFUAV, the influence of the slider parameters on the dynamical behavior is analyzed, and the ideal installation position of the slider is given.…”

Design of a Fixed-Wing UAV Controller Based on Adaptive Backstepping Sliding Mode Control Method

“…The stability and effectiveness of the controller were also proved by experiments, and the related gain adaptation laws reduced the tremor. Qi et al [22] presented a quality-driven fixed-wing UAV rather than a traditional aerodynamic-driven UAV and controlled it using a method based on adaptive sliding mode control. The designed controller is a type of adaptive sliding mode controller that integrates a fuzzy system, an RBF neural network, and sliding mode control.…”