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Characteristic modeling based all coefficients adaptive control was proposed by Academician Wu Hong-Xin in 1980s. The theory is motivated and gradually enhanced to completion in the past three decades. This theory and method have already been applied successfully to the reentry adaptive control of manned spaceships, automatic rendezvous and docking between Shenzhou-8, Shenzhou-9 and Tiangong-1, etc...
This paper focuses on the adaptive tracking problem for air-breathing hypersonic vehicles (AHVs) subject to aerodynamic uncertainties and unknown disturbances caused by modeling errors. Motivated by the nonlinear disturbance observer-based control approach (NDOBC), the parameter uncertainties are merged into the disturbances. A control law based on the tracking control method originally proposed by...
The design of a flight controller not only stabilizes attitude angle, but also tracks a trajectory accurately. For a quadrotor unmanned aerial vehicle (UAV) in presence of parametric uncertainties and external disturbances is more challenging. A hybrid control method based on backstepping and fuzzy adaptive PID is proposed, which improves the flight stability of quadrotor aircraft in different conditions...
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