Autonomous control of agile fixed-wing UAVs performing aerobatic maneuvers

Incremental adaptive fixed‐wing unmanned aerial vehicle maneuver control with nonlinear disturbance observer: A finite‐time approach

“…According to the time-scale principle of incremental dynamic inversion control [15], the response time of the control inputs is much shorter than those of x (k) 1 and x (k) 2 , that is, Δx (k) 1 and Δx (k) 2 are much smaller than Δu (k) in Equation (5).…”

“…Increasing unmanned aerial vehicle's (UAV) maneuverability is advantageous for military or commercial applications, for example, dogfighting, air-to-ground attacks, and agile obstacle avoidance. With the fast technological development in recent years, UAV maneuver flight has attracted growing attention from researchers, and most of them are focused on helicopters [1,2], quad-rotors [3], and fixed-wing UAVs [4,5]. In the case of helicopters and quad-rotors, since these platforms suffer from low endurance and payload capacity, fixed-wing UAVs, associated with high thrust-weight ratio and agility, are widely used for maneuvering flight research.…”

Piecewise Polynomial Modeling for Control and Analysis of Aircraft Dynamics Beyond Stall

“…Therefore, improved methods for accurate modeling are imperative, in particular when developing robust and powerful advanced control strategies for upset recovery. Subsequently, model feedback designs based on full-envelope aerodynamic models will grant full authority and control efficiency for stability and performances in unmanned aircraft (UA) [13].…”

Identification of Thrust, Lift, and Drag for Deep-stall Flight Data of a Fixed-wing Unmanned Aircraft

“…This requires controlled flight at high angles of attack, exceeding the stall point. Various offthe-envelope control approaches have been developed [4][5][6], commonly approaches requiring accurate models of the aerodynamics (see also [7] and references herein). In [8,9], the aerodynamics of small UAs were modeled based on their geometry; and accurate measurement technologies have boosted the in-flight estimation of aerodynamic coefficients [10][11][12]: the latter involves the computation of forces during flight based on trajectories, which are usually recorded using optical tracking technology.…”