Browsing by Author "Dalmau Codina, Ramon"
Now showing items 21-40 of 41
-
Fuel and time savings by flying continuous cruise climbs: Estimating the benefit pools for maximum range operations
(2015-03-01)
Article
Open Access -
Fuel inefficiency characterisation and assessment due to early execution of top of descents. A Case Study for Amsterdam-Schiphol Terminal Airspace using ADS-B data
(2021)
Conference report
Open AccessThe vertical trajectory plan (altitude and speed) corresponding to the descent phase of a modern airliner is computed by the on-board flight management system while the aircraft is still in cruise. As long as the constraints ... -
Fuel-efficient trajectories traffic synchronization
(2019-03)
Article
Open AccessContinuous descent operations (CDOs) with required times of arrival (RTA) have been identified as a potential solution for reducing the environmental footprint of aviation in the terminal maneuvering area without compromising ... -
High performance computing simulator for the performance assessment of trajectory based operations
(2016)
Conference report
Open AccessHigh performance computing (HPC), both at hardware and software level, has demonstrated significant improve- ments in processing large datasets in a timely manner. However, HPC in the field of air traffic ... -
How much fuel and time can be saved in a perfect flight trajectory? Continuous cruise climbs vs. conventional operations
(2014)
Conference report
Open AccessContinuous climb, cruise and decent operations (referred as continuous operations) may contribute to significantly reduce fuel and emissions. Nevertheless, it is obvious that the introduction of such procedures at large ... -
Human-in-the-loop performance assessment of optimized descents with time Constraints. Results from full motion flight simulation and a flight testing campaign
(2017)
Conference report
Open AccessTEMO (time and energy managed operations) is a new concept that aims to optimise continuous descent operations, while fulfilling with a very high accuracy controlled time of arrival (CTA) constraints at ... -
Identifying the sources of flight inefficiency from historical aircraft trajectories. A set of distance- and fuel-based performance indicators for post-operational analysis.
(2019)
Conference report
Open AccessIn this paper a set of new performance indicators (PIs) aiming to capture the environmental impact of aircraft operations is proposed. Its contribution is threefold: optimal trajectories are computed to compare them with ... -
Improving the predictability of take-off times with Machine Learning : a case study for the Maastricht upper area control centre area of responsibility
(2019)
Conference lecture
Open AccessThe uncertainty of the take-off time is a major contribution to the loss of trajectory predictability. At present, the Estimated Take-Off Time (ETOT) for each individual flight is extracted from the Enhanced Traffic Flow ... -
Linear Holding for Reducing Additional Delays Experienced by Flights Subject to Ground Holding at no Extra Fuel Cost
(2017)
Conference lecture
Restricted access - publisher's policyThis paper presents a method to implement linear holding (LH) for flights subject to ground holding in context of the upcoming Trajectory Based Operations in air transportation, aimed at reducing additional delays raised ... -
Maximizing airborne delay at no extra fuel cost by means of linear holding
(2017-08-01)
Article
Open AccessThis paper introduces a linear holding strategy based on prior works on cruise speed reduction, aimed at performing airborne delay at no extra fuel cost, as a complementary strategy to current ground and airborne holding ... -
Optimal assignment of 4D close-loop instructions to enable CDOs in dense TMAs
(2018)
Conference report
Open AccessContinuous descent operations (CDOs) with required times of arrival (RTAs) represent a potential solution to reduce the environmental impact in terminal maneuvering areas without degrading capacity. However, flight management ... -
Optimal trajectory management for aircraft descent operations subject to time constraints
(Universitat Politècnica de Catalunya, 2019-06-25)
Doctoral thesis
Open AccessThe growth in traffic increased the pressure on the environmental sustainability of air transport. In this context, many research effort has been devoted to minimise the environmental impact in the different phases of ... -
Performance comparison between TEMO and a typical FMS in presence of CTA and wind uncertainties
(2016)
Conference report
Open AccessContinuous Descent Operations (CDO) with Con- trolled Times of Arrival (CTA) at one or several metering fixes could enable environmentally friendly procedures without com- promising airspace capacity. Extending the ... -
Performance comparison of guidance strategies to accomplish RTAs during a CDO
(2017)
Conference report
Open Access -
pyBADA: Easy BADA integration in Python for rapid prototyping
(2018)
Conference lecture
Open AccessThe base of aircraft data (BADA) model provides accurate modelling of aircraft performances over the complete flight envelope for flight simulation and prediction applications. BADA is based on a generic total energy model, ... -
Real-time aircraft continuous descent trajectory optimization with ATC time constraints using direct collocation methods.
(2014)
Conference report
Restricted access - publisher's policy1 Abstract In this paper an initial implementation of a real - time aircraft trajectory optimization algorithm is presented . The aircraft trajectory for descent and approach is computed for ... -
Real-time Identification of Guidance Modes in Aircraft Descents Using Surveillace Data
(Institute of Electrical and Electronics Engineers (IEEE), 2018)
Conference report
Open AccessTrajectory predictors require information on the flight-intent in order to estimate the future state of the aircraft. At present, however, such information is not available or it is very limited and coarse (unless predicting ... -
Sensitivity-based non-linear model predictive control for aircraft descent operations subject to time constraints
(Multidisciplinary Digital Publishing Institute (MDPI), 2021-12)
Article
Open AccessThe ability to meet a controlled time of arrival while also flying a continuous descent operation will enable environmentally friendly and fuel efficient descent operations while simultaneously maintaining airport throughput. ... -
Time and Energy Managed Operations (TEMO): Cessna Citation II Flight Trials
(2016)
Conference report
Open AccessFrom 9-26 October 2015 the Netherlands Aerospace Centre (NLR) in cooperation with Delft University of Technology (DUT) has executed Clean Sky flight trials with the Cessna Citation II research aircraft. The trials consisted ... -
Using Broadcast Wind Observations to Update the Optimal Descent Trajectory in Real-Time
(2020-02)
Article
Open AccessThe ability to meet a controlled time of arrival during a continuous descent operation will enable environmentally friendly and fuel-efficient descent operations while simultaneously maintaining airport throughput. However, ...
