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The UAVs business experiences currently a strong growth in particular thanks to the popularisation of its mini class (e.g. DJI Phantom, Parrot Bebop…). Nevertheless, there is still a need for more capable aircraft, mainly in terms of payload and endurance, in both military and civilian markets. This type of aircraft is historically known as the tactical class, which is a compromise between the affordability...
In this paper, a novel PID gain update law using linear least squares regression is introduced as an adaptive control method for autonomous helicopters. In addition, prediction analysis is conducted for error dynamics of the closed loop system using recursive linear least squares regression. Combining these two concepts with classical PID controller, an intelligent PID controller is obtained. A flight...
This paper proposes an autonomous flight control method of quadrotor helicopter using only single Web camera. Recently, great attentions have been paid to the autonomous flight control method of quadrotor helicopter. In the previously proposed methods, for example, GPS, motion capture system and laser range finder are often applied to measure the position and posture of quadrotor helicopter. But,...
In this paper, the hybrid fuzzy-PID controller for a coaxial rotor helicopter is developed as a supplement to the conventional PID controller. The coaxial rotor helicopter uses one motor and two swash plates linked to each other. The helicopter system is modeled by nonlinear dynamics. The PID control system works well with a moderate velocity change. However, it provides unsatisfactory performance...
This paper expands upon a proposed freeway-style method of traffic management for commercial sUAS, with the goal of increasing traffic safety and efficiency. Various potential hazards that sUAS may encounter mid-flight will be examined and categorized by severity; their resulting effects on traffic flow will be analyzed when applicable. Potential design improvements will be suggested, and areas for...
This paper considers the problem of integrating unmanned aircraft into low altitude airspace above urban environments, including major terminal areas and helicopter landing sites. A simple set of data-driven modelling techniques are used to explore, visualise and assess existing air traffic in a manner more informative to the unmanned aircraft community. First, low altitude air traffic data sets (position...
This paper presents an active fault-tolerant control (FTC) design approach by virtue of an adaptive linear parameter varying (LPV) methodology. In this study, the magnitude of fault is obtained from the results of a fault detection and diagnosis (FDD) scheme. Based on the estimated fault magnitude, a fault-tolerant linear parameter dependent statefeedback controller in a convex polytopic LPV representation...
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