Evolutionary approaches are not usually considered for real time scheduling problems due to long computation times and uncertainty about the length of the computation time. We argue that for some kinds of problems, such as optimizing aircraft landing times, genetic algorithms have advantages over other methods as a best solution is always available when needed, and, since the computation is inh...

In the paper a prototype of a system for automatic landing of aircrafts and helicopters is proposed. The key requirement is to develop a completely autonomous system that does not depend on any kind of infrastructure or equipment, located outside the aircraft (like GPS, ILS, etc.). The idea is to control and navigate the aircraft using images, acquired by the camera, installed on the aircraft. ...

This paper presents a feasibility study of a vision-based autonomous approach and landing for an aircraft using a direct visual tracking method. Auto-landing systems based on the Instrument Landing System (ILS) have already proven their importance through decades but general aviation stills without cost-effective solutions for such conditions. However, vision-based systems have shown to have th...

This paper presents fully automatic control of an unmanned aerial vehicle (UAV) from taxiing and takeoff to landing based on a single-antenna GPS receiver. In this paper, inertial sensors such as gyros and accelerometers are not used at all to show the full potential of a single-antenna GPS receiver based attitude determination system. DGPS is implemented to give high accuracy position informat...

A distributed suction i1igh-lift boundary layer control system fitted to a standard liaison L-19 aircraft incre~sed the aircraft c 1 max to 5.74 and decreased the take-off and landing distance over a 50-foot obstacle by 38 percent and 29 percent, respectively, with no increase in available power. The modified aircraft demonstrated acceptable stability, control, and handling characteristics in a...

We describe some new tools for the clearance of flight control laws for highly augmented aircraft. The tools are developed from general -analysis methods, and are applied to the clearance of a flight control law for a vertical/short take-off and landing aircraft. Stability robustness analysis results for the flight control law are presented in terms of the standard clearance criteria currently ...

London Heathrow airport is one of the busiest airports in the world as it is very popular with both airlines and passengers. The capacity of the departure system at Heathrow is limited by the capacity of the runway. It is therefore imperative to maximise the throughput of the single available departure runway. Aircraft taxi from the stands to the ends of the runway where they queue in holding p...

Trajectory tracking and configuration stabilization for the vertical takeoff and landing (VTOL) aircraft has been so far considered in the literature only in the presence of a slight (or zero) input coupling (i.e., for a small ). In this note, our main contribution is to address global configuration stabilization for the VTOL aircraft with a strong input coupling using a smooth static state fee...

In this work we present a variational formulation for a multilayer perceptron neural network. With this formulation any learning task for the neural network is defined in terms of finding a function that is an extremal for some functional. Thus the multilayer perceptron provides a direct method for solving general variational problems. The application of this numerical method is investigated th...

-A revolutionary innovation in the field of navigation aids, help pilots to have a smooth and safe landing. Landing depends upon the two factors: elevator deflection and throttle deflection; the relation between the two should be maintained in order to acquire a non-oscillatory output response. Membership function are developed using the crisp values of velocity and height of an aircraft. Fuzzi...