Air to Ground Trajectory Synchronisation through Extended Predicted Profile: A Pilot Study

Bronsvoort, Jesper; McDonald, Greg; Hochwarth, Joachim; Gallo, Eduardo

doi:10.2514/6.2014-2290

Cited by 9 publications

(13 citation statements)

References 11 publications

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“…Previous work of these authors demonstrated how the new EPP trajectory down-link standard could be compared to the existing IPI trajectory down-link standard to achieve air-ground trajectory synchronisation 15 . A representative flight was simulated containing both EPP and IPI down-linked data conforming to the respective standards.…”

Section: Discussionmentioning

confidence: 99%

“…As demonstrated by 15 , the EPP provides the ability to synchronise lateral, speed and altitude intent, however "thrust intent", like climb rating and use of anti-ice, remains uncertain. In addition, the FMS could be configured for additional profile drag which also impacts the accuracy of the ground system which relies on a nominal drag model.…”

Section: Calibrate Ground Tp Using Eppmentioning

confidence: 97%

“…In addition, re-computing the trajectory on the ground by a calibrated trajectory predictor provides trajectory information between the EPP Trajectory Change Points (TCPs) rather than performing a basic interpolation. Figure 4 shows a typical climb operation for a simulated flight in International Standard Atmosphere (ISA) conditions taken from Bronsvoort et al 15 . The solid grey line indicates the EPP trajectory created by connecting the EPP trajectory change points with straight lines.…”

Section: Calibrate Ground Tp Using Eppmentioning

confidence: 99%

“…The EPP extends and improves the IPI trajectory down-link, and will reflect both the lateral, vertical, and temporal aspects of the reference trajectory 15 . A down-link of aircraft's EPP information contains a prediction from the aircraft of its future trajectory contained in a maximum 128 trajectory change points.…”

Section: Extended Projected Profilementioning

confidence: 99%

“…15 proposed that the down-link trajectory data in the form of the EPP is used to re-construct the basic commands, guidance modes and control strategies available to the FMS to plan and execute the trajectory to be followed. These basic commands, guidance modes and control strategies are collectively referred to as aircraft intent 34 .…”

Section: B Derive Intent and Aircraft Parameters From Eppmentioning

confidence: 99%

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Role of Extended Projected Profile Down-Link to Achieve Trajectory Synchronisation in support of Trajectory Based Operations

Bronsvoort¹,

McDonald

Torres

et al. 2016

16th AIAA Aviation Technology, Integration, and Operations Conference

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This paper presents an analysis of applications, shortfalls, and challenges related to the use of the Extended Projected Profile (EPP) in the context of Trajectory Management (TM). Research on Air Traffic Management (ATM) concepts indicate that sharing the aircraft's planned Four-Dimensional Trajectory (4DT) during planning and execution of operations enables more efficient use of resources even in congested airspace and situations of increased traffic loads. In the Trajectory Management concept, operators, traffic flow managers, and air traffic control negotiate operator preferences and airspace restrictions based on a 4DT. The 4DT provides the accuracy and the flexibility required to represent flight intent information that can be used to manage the flight in an efficient manner while satisfying safety and air traffic control goals. Several ATM scenarios of interest are analysed to identify the role of the EPP and to understand how the information provided by the EPP can be utilised by ground automation and Decision Support Tools (DSTs) to improve system optimisation. Integrating the EPP in ground automation systems also opens the possibility to exploit the advanced capabilities of flight optimisation available in the Flight Management System (FMS).In order for ground automation systems to use the EPP, however, there are several operational considerations to take into account. Aspects such as wind synchronisation, user preference, intent changes required by the operation, and assumptions used to generate the EPP, are scenario-dependent, and determine how the EPP should be used by ground automation.

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Section: Discussionmentioning

confidence: 99%

Section: Calibrate Ground Tp Using Eppmentioning

confidence: 97%

Section: Calibrate Ground Tp Using Eppmentioning

confidence: 99%

Section: Extended Projected Profilementioning

confidence: 99%

Section: B Derive Intent and Aircraft Parameters From Eppmentioning

confidence: 99%

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