Sensitivity Of Trajectory Prediction In Air Traffic Management And Flight Management Systems
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Sensitivity Of Trajectory Prediction In Air Traffic Management And Flight Management Systems
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Author : Michael Rollin Charles Jackson
language : en
Publisher:
Release Date : 1997
Sensitivity Of Trajectory Prediction In Air Traffic Management And Flight Management Systems written by Michael Rollin Charles Jackson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with categories.
The Impact Of Trajectory Prediction Uncertainty On Reliance Strategy And Trust Attitude In An Automated Air Traffic Management Environment
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Author : Sarah M. Hunt
language : en
Publisher:
Release Date : 2013
The Impact Of Trajectory Prediction Uncertainty On Reliance Strategy And Trust Attitude In An Automated Air Traffic Management Environment written by Sarah M. Hunt and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013 with Air traffic control categories.
Future air traffic environments have the potential to exceed human operator capabilities. In response, air traffic control systems are being modernized to provide automated tools to overcome current-day workload limits. Highly accurate aircraft trajectory predictions are a critical element of the automated tools envisioned as part of the evolution of today's air traffic management system in the United States, known as NextGen. However, automation accuracy is limited due to the effects of external variables: "errors" such as wind forecast uncertainties. The focus of the Trajectory Prediction Uncertainty simulation at NASA Ames Research center were the effects of varied levels of accuracy on operator's tool use during a time based metering task. The simulation's environment also provided a means to examine the relationship between an operator's reliance strategy and underlying trust attitude. Operators were found to exhibit an underlying trust attitude distinct from their reliance strategies, supporting the strategic use of the Human-Automation trust scale in an air traffic control environment.
Medium Term Trajectory Prediction Data Management For Air Traffic Control
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Author : Andreas Schlegel
language : en
Publisher:
Release Date : 2011
Medium Term Trajectory Prediction Data Management For Air Traffic Control written by Andreas Schlegel and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with categories.
Air Traffic Management And Systems
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Author : Electronic Navigation Research Inst
language : en
Publisher: Springer Science & Business Media
Release Date : 2014-03-12
Air Traffic Management And Systems written by Electronic Navigation Research Inst and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-03-12 with Technology & Engineering categories.
The Electronic Navigation Research Institute (ENRI) held its third International Workshop on ATM / CNS in 2013 with the theme of "Drafting the future sky". There is worldwide activity taking place in the research and development of modern air traffic management (ATM) and its enabling technologies in Communication, Navigation and Surveillance (CNS). Pioneering work is necessary to contribute to the global harmonization of air traffic management and control. At this workshop, leading experts in research, industry and academia from around the world met to share their ideas and approaches on ATM/CNS related topics.
Trajectory Prediction Uncertainty Modelling For Air Traffic Management
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Author : Enrique Juan Casado Magaña
language : en
Publisher:
Release Date : 2016
Trajectory Prediction Uncertainty Modelling For Air Traffic Management written by Enrique Juan Casado Magaña and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with categories.
Modelling Flexible Thrust Performance For Trajectory Prediction Applications In Air Traffic Management
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Author : Ismael Matamoros Cid
language : en
Publisher:
Release Date : 2015
Modelling Flexible Thrust Performance For Trajectory Prediction Applications In Air Traffic Management written by Ismael Matamoros Cid and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with categories.
The Air Traffic Management (ATM) paradigm is shifting towards a scenario where Trajectory Predictors (TP) play a key role. They rely on Aircraft Performance Models (APM), mathematical models of the performance related characteristics of aircraft. The widespread use of non-coventional take-off procedures, such as the flexible thrust method, has arose the necessity of modelling them to keep fidelity in take-off trajectory predictions. This project, carried out with Boeing Research & Technology Europe (BR&TE) and upon request of EUROCONROL, arises in response to the current lack in the APM market of a validated methodology to model reduced thrust operations. Its goal is to propose a complete and validated model to compute reduced thrust using Assumed Temperature (AT). The proposed methodology is composed by a model of AT and a thrust model properly validated for flexible thrust computations. To accomplish this goal, a new specification of the AT model that is being developed by BR&TE has been implemented, based upon a set of improvements suggested by EUROCONTROL. In order to determine a valid thrust model for flexible thrust computations, EUROCONTROL'S Base of Aricraft Data (BADA) and Aircraft Noise Performance (ANP) APMs have been validated. These validations have been carried out with different official Boeing's performance software: the Standard Take-off Analysis Software (STAS) and the Boeing Climbout Program (BCOP). As a result of the study different order polynomials that model the AT as a function of the take-off conditions have been produced. In addition, it has been concluded that ANP contains a valid thrust model for flexible thrust calculations, whereas the current version of BADA is not valid to compute thrust during the take-off phase. A first application of this method has been put into effect by developing a prototype of a Take-off Trajectory Predictor (TTP) that implements the flexible thrust model. This prototype is intended to be integrated in Boeing's trajectory computation infrastructure in the future as a take-off and landing module and needs to be improved, validated with Boeing's performance software and integrated as future work.
Air Traffic Management And Systems Iii
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Author : Electronic Navigation Research Institute
language : en
Publisher: Springer
Release Date : 2019-06-21
Air Traffic Management And Systems Iii written by Electronic Navigation Research Institute and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-06-21 with Technology & Engineering categories.
This proceedings provides novel concepts and techniques for air traffic management (ATM) and communications, navigation, and surveillance (CNS) systems. The volume consists of selected papers from the 5th ENRI International Workshop on ATM/CNS (EIWAC2017) held in Tokyo in November 2017, the theme of which was “Drafting Future Skies”. Included are key topics to realize safer and more efficient skies in the future, linked to the integrated conference theme consisting of long-term visions based on presentations from various fields. The proceedings is dedicated not only to researchers, academicians, and university students, but also to engineers in the industry, air navigation service providers (ANSPs), and regulators of aviation.
An Integrated Framework For Trajectory Optimisation Prediction And Parameter Estimation For Advanced Aircraft Separation Concepts
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Author : Santi Vilardaga García-Cascón
language : en
Publisher:
Release Date : 2019
An Integrated Framework For Trajectory Optimisation Prediction And Parameter Estimation For Advanced Aircraft Separation Concepts written by Santi Vilardaga García-Cascón and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019 with categories.
Since the birth of commercial aviation, the applications and benefits of aircraft have grown immensely. This, in perfect synchrony with the average increase of purchasing power of the society, has rocketed the number of aircraft flying the skies. This increase comes at a cost, both in environmental and airspace capacity aspects. This thesis works towards the alleviation of the issues caused by the high number of flights, proposing concepts and mechanisms to safely increase the airspace capacity whilst minimising the environmental impact of aviation. This incredibly complex and neverending pursuit is omnipresent in the literature. One promising topic is the four dimensional (4D) trajectory optimisation with higher levels of automation.The research in this PhD thesis proposes an integrated framework for trajectory optimisation, trajectory prediction and parameter estimation, with which new air traffic management concepts can be assessed. This framework has the flexibility to optimise trajectories ranging from a free-flight to a very strict route structure, from a complete freedom at the vertical profile to a specific adherence to flight levels, etc. The 4D optimisation strategy results in a trajectory that complies with the scenario characteristics, which minimises a given functional objective such as the operational cost, time, fuel, etc. Furthermore, the same framework is used in a novel strategy to perform adaptive trajectory prediction (with conformance monitoring), and to estimate unknown parameters of an aircraft.To resolve this problem, an optimal control problem is formulated and converted into a non-linear programming (NLP) problem with direct collocation methods, and numerically resolved by an NLP solver. A comprehensive software architecture is presented, taking benefit from the best of two worlds to enable the flexibility and genericity of the developed optimisation framework: an object-oriented software coding language (C++) and a very powerful algebraic modelling language (GAMS).Based on this optimisation framework, the thesis produces operationally relevant results, demonstrating that the framework can cope with a variety of problems, and contributing to the ultimate goal of safely increasing airspace capacity and air traffic efficiency. Illustrative examples are presented focussed on the departure phase within a terminal manoeuvring area. First, an assessment of the efficiency of required times of arrival as a ways to increase air traffic capacity is presented, providing results on the cost in terms of fuel and time of imposing these time requirements within a TMA (which can get to surprisingly low figures), and its effectiveness for traffic separation. Second, the implementation of an aircraft separation methodology is presented, where an intruder trajectory is predicted and the ownship calculates its own optimal trajectory that deviates from it. A conformance monitoring strategy is implemented to ensure that the separation is maintained throughout the flight, acknowledging deviations, and reacting accordingly. Third, the prediction of the intruder trajectory is enhanced by the estimation of an equivalent mass using known past states. An impressive accuracy is achieved early after the beginning of the flight. Finally, the implementation of a multi-aircraft separation strategy is presented, where multiple aircraft are simultaneously optimised in the same optimisation problem, all whilst maintaining separation between them. The complexity of the alignment of aircraft coordinates for a fair comparison is tackled from a novel perspective.Conclusively, the different strategies for aircraft separation are compared, and quite surprisingly the best results for each strategy are quite similar. Indeed, the increase in operational cost that the different strategies present (when compared to the individual optimal trajectory) is negligible and alledgedly better than the current air traffic control separation paradigm.
Trajectory Specification For High Capacity Air Traffic Control
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Author : National Aeronautics and Space Adm Nasa
language : en
Publisher: Independently Published
Release Date : 2018-09-17
Trajectory Specification For High Capacity Air Traffic Control written by National Aeronautics and Space Adm Nasa and has been published by Independently Published this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-09-17 with Science categories.
In the current air traffic management system, the fundamental limitation on airspace capacity is the cognitive ability of human air traffic controllers to maintain safe separation with high reliability. The doubling or tripling of airspace capacity that will be needed over the next couple of decades will require that tactical separation be at least partially automated. Standardized conflict-free four-dimensional trajectory assignment will be needed to accomplish that objective. A trajectory specification format based on the Extensible Markup Language is proposed for that purpose. This format can be used to downlink a trajectory request, which can then be checked on the ground for conflicts and approved or modified, if necessary, then uplinked as the assigned trajectory. The horizontal path is specified as a series of geodetic waypoints connected by great circles, and the great-circle segments are connected by turns of specified radius. Vertical profiles for climb and descent are specified as low-order polynomial functions of along-track position, which is itself specified as a function of time. Flight technical error tolerances in the along-track, cross-track, and vertical axes define a bounding space around the reference trajectory, and conformance will guarantee the required separation for a period of time known as the conflict time horizon. An important safety benefit of this regimen is that the traffic will be able to fly free of conflicts for at least several minutes even if all ground systems and the entire communication infrastructure fail. Periodic updates in the along-track axis will adjust for errors in the predicted along-track winds.Paielli, Russell A.Ames Research CenterAIR TRAFFIC CONTROL; AIR TRAFFIC; DOCUMENT MARKUP LANGUAGES; TRAJECTORIES; FLIGHT MANAGEMENT SYSTEMS; AIR TRAFFIC CONTROLLERS (PERSONNEL); PILOT ERROR; POLYNOMIALS; FLIGHT SAFETY; DESCENT TRAJECTORIES; ASCENT TRAJECTORIES
Aircraft Trajectories Computation Prediction Control
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Author : André Benoit
language : en
Publisher:
Release Date : 1990
Aircraft Trajectories Computation Prediction Control written by André Benoit and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with categories.