Conventional aircraft generally employ mixing algorithms or lookup tables to determine control surface deflections needed to achieve moments commanded by the flight control system. Control allocation is the problem of converting desired moments into control effector commands. Next generation aircraft may have many multipurpose, redundant control surfaces, adding considerable complexity to the c...

Rule generation method is proposed for an aircraft control problem in an airport. Designing appropriate rules for motion coordination of taxiing aircraft in the airport is important, which is conducted by ground control. However, previous studies did not consider readability of rules, which is important because it should be operated and maintained by humans. Therefore, in this study, using the ...

Existing Air Traffic Control (ATC) procedures rely completely on human supervision and control. However, with the burgeoning traffic demands, it has become necessary to find options for automated (and possibly decentralized) traffic control. In particular, the problem of aircraft collision avoidance is of great interest. However, current approaches, [1] [2], are either computationally intensive...

Civil unmanned aircraft will need to meet stringent safety standards before they are certified to operate in the national airspace of the United States. Reliability is a key requirement for certification. Most current civil unmanned aircraft are not reliable because of the presence of single points-of-failure and the use of low-reliability components. For example: Many fixed-wing unmanned aircr...

This paper presents four optimization algorithms: Bacterial Foraging Optimization (BFO), Particle Swarm Optimization (PSO), Chaos Particle Swarm Optimization (CPSO) and Bacterial Swarm Optimization (BSO), and a neural network compensator: Resource Allocation Network (RAN) to aircraft automatic landing control design. When wind disturbance is beyond the originally scheduled flight condition, the...

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 ...

We address the conflict detection and resolution problem in air traffic control, where an aircraft conflict is a loss of separation between aircraft trajectories. Conflict avoidance is crucial to ensure flight safety and remains a challenging traffic control problem. We focus on speed control to separate aircraft and consider two approaches: (i) maximize the number of conflicts resolved and (ii...

The pilot’s task in commercial aircraft operations has changed from flying the aircraft by means of manual control, to increased monitoring of the cockpit. The increase of automation provides a high level of stability and reduces variations and disturbances, leaving crews with little exposure to surprise. Current training programs are similarly focused on dealing with anticipated problems and p...

An adaptive backstepping controller is designed for the automatic landing of a fixed-wing aircraft. The backstepping control scheme is adopted by using the nonlinear six degree-of-freedom dynamics of the aircraft during the landing phase. The adaptive law is integrated along with the backstepping controller in order to estimate the aircraft modeling errors as well as the external disturbance. T...