Analysis of the geometric altimetry to support aircraft optimal profiles within future 4D trajectory management

García-Heras Carretero, Javier and Saez Nieto, Francisco Javier (2012). Analysis of the geometric altimetry to support aircraft optimal profiles within future 4D trajectory management. In: "ATACCS '12 International Conference on Application and Theory of Automation in Command and Control Systems", May 29 - 31, 2012, London, United Kingdom. pp. 196-199.

Description

Title: Analysis of the geometric altimetry to support aircraft optimal profiles within future 4D trajectory management
Author/s:
  • García-Heras Carretero, Javier
  • Saez Nieto, Francisco Javier
Item Type: Presentation at Congress or Conference (Article)
Event Title: ATACCS '12 International Conference on Application and Theory of Automation in Command and Control Systems
Event Dates: May 29 - 31, 2012
Event Location: London, United Kingdom
Title of Book: Proceedings of the 2nd International Conference on Application and Theory of Automation in Command and Control Systems
Date: 2012
ISSN: 978-2-917490-20-4
Subjects:
Freetext Keywords: Trajectory based operations, Flight profiles, geodetic altimetry, vertical guidance, 4D trajectories.
Faculty: E.T.S.I. Aeronáuticos (UPM)
Department: Infraestructura, Sistemas Aeroespaciales y Aeropuertos [hasta 2014]
Creative Commons Licenses: None

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Abstract

The use of barometric altimetry is to some extent a limiting factor on safety, predictability and efficiency of aircraft operations, and reduces the potential of the trajectory based operations capabilities. However, geometric altimetry could be used to improve all of these aspects. Nowadays aircraft altitude is estimated by applying the International Standard Atmosphere which differs from real altitude. At different temperatures for an assigned barometric altitude, aerodynamic forces are different and this has a direct relationship with time, fuel consumption and range of the flight. The study explores the feasibility of using sensors providing geometric reference altitude, in particular, to supply capabilities for the optimization of vertical profiles and also, their impact on the vertical Air Traffic Management separation assurance processes. One of the aims of the thesis is to assess if geometric altitude fulfils the aeronautical requirements through existing sensors. Also the thesis will elaborate on the advantages of geometric altitude over the barometric altitude in terms of efficiency for vertical navigation. The evidence that geometric altitude is the best choice to improve the efficiency in vertical profile and aircraft capacity by reducing vertical uncertainties will also be shown. In this paper, an atmospheric study is presented, as well as the impact of temperature deviation from International Standard Atmosphere model is analyzed in order to obtain relationship between geometric and barometric altitude. Furthermore, an aircraft model to study aircraft vertical profile is provided to analyse trajectories based on geometric altitudes.

More information

Item ID: 16408
DC Identifier: http://oa.upm.es/16408/
OAI Identifier: oai:oa.upm.es:16408
Official URL: http://dl.acm.org/citation.cfm?id=2325676&coll=DL&dl=ACM&preflayout=flat
Deposited by: Ld Ayudante Javier García-Heras Carretero
Deposited on: 12 Jul 2013 07:32
Last Modified: 21 Apr 2016 16:42
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