This chapter introduces the reader to the benefits of distributed computing in air transportation. It presents a solution to airborne self-separation based on RAPTOR, a stack of distributed protocols that allows aircraft to reach different types of agreement in the presence of faults, both of accidental and malicious nature. These protocols are used as primitives to implement specific services ...

Zero/constant modulus (ZCM) signals are complex signals for which every sample is either zero or has modulus 1. Such signals arise after imprecise carrier-to-baseband conversion of binary {0;1}-modulated signals, or with intermittent phase-modulated signals. We consider the separation of linear superpositions of such signals using analytic techniques. An application is the separation of multipl...

London Heathrow airport is one of the busiest airports in the world. Moreover, it is unusual among the world’s leading airports in that it only has two runways. At many airports the runway throughput is the bottleneck to the departure process and, as such, it is vital to schedule departures effectively and efficiently. For reasons of safety, separations need to be enforced between departing air...

In aviation, using external stores under the wings is a common method of carrying payload or fuel. some cases, can be rigidly attached to wing. However, must often ejected during flight for aircraft, such as military type, which carry drop tanks and missiles. This may cause wing respond dynamically with increasing amplitudes, due impulsive load ejection change total mass. especially critical in...

In the present paper, an efficient method for three dimensional aircraft pattern recognition is introduced. In this method, a set of simple area based features extracted from silhouette of aerial vehicles are used to recognize an aircraft type from its optical or infrared images taken by a CCD camera or a FLIR sensor. These images can be taken from any direction and distance relative to the fly...

In integrating Unmanned Aircraft Systems (UAS) into the National Airspace System, separation assurance is one of the important air traffic services for ensuring safe operations of air traffic. This paper describes an approach to develop a range of operational concepts by describing what functions and technologies are required to maintain safe separation of unmanned aircraft and how those functi...

This paper addresses the challenge of building an automated decision support methodology to tackle the complex problem faced every day by runway controllers at London Heathrow Airport. Aircraft taxi from stands to holding areas at the end of the current take-off runway where they wait in queues for permission to take off. A runway controller attempts to find the best order for aircraft to take ...

This study used a human-in-the-loop simulation to examine the feasibility of mixed equipage operations in an automated separation assurance environment under higher traffic densities. The study involved two aircraft equipage alternatives – with and without data link – and four traffic conditions. In all traffic conditions the unequipped traffic count was increased linearly throughout the scenar...

An equivalent method from dynamic load to static using the aircraft full finite element model based on structure energy theory is proposed solve problem that fuse pin structures cannot be precisely designed under impact loading. Two groups of material and test are performed verify strength failure mode with load. The experimental analytical results indicate sized can accurately destroyed, simil...