Nicolas Barnier
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View article: Application of Compact Representation of Ordered Set to Air Traffic Conflict Resolution
Application of Compact Representation of Ordered Set to Air Traffic Conflict Resolution Open
The motivation of implementing Adaptive Compact Tree is to improve the performance of Constraint Programming(CP) solvers operations, which is used for en-route conflict resolution in. AC-Trees could not only help CP solver to solve the con…
View article: Adaptive Binary Search Tree for Integers Sets with Few Holes
Adaptive Binary Search Tree for Integers Sets with Few Holes Open
We present the Adaptive Compact Tree (AC-Tree), a data structure similar to a self-balancing binary search tree (BST) that improves storage and operations for sets of integers with few “holes”. AC-Trees can be implemented on top of any cla…
View article: Departure Management with Robust Gate Allocation
Departure Management with Robust Gate Allocation Open
The Airport Collaborative Decision Making (A-CDM) concept yields concrete and promising solutions for airports, in terms of traffic punctuality and predictability, with possible delay, noise and pollution reduction. A key feature of A-CDM …
View article: Propagation of Idle Times Costs for Fixed Job Scheduling
Propagation of Idle Times Costs for Fixed Job Scheduling Open
We present a new global constraint to propagate idle times costs for the Fixed Job Scheduling (FJS) problem, in particular to minimize their variance so as to optimize the robustness of solutions w.r.t. schedule deviations. The propagation…
View article: Detect and Avoid Algorithm for UAS with 3D-Maneuvers
Detect and Avoid Algorithm for UAS with 3D-Maneuvers Open
In this article, we extend the 2D-framework introduced in 2016 to implement a horizontal detect and avoid algorithm for UASs flying in Terminal Control Areas. First, we introduce a model able to detect conflicting trajectories in 3D and se…
View article: Large Scale 3D En-Route Conflict Resolution
Large Scale 3D En-Route Conflict Resolution Open
En-route conflict resolution is a good example of a large-scale combinatorial optimization problem. On the one hand, it has been modeled in many different ways, most of the time depending on the tools that were proposed to solve it. On the…
View article: Assessing the Robustness of a UAS Detect & Avoid Algorithm
Assessing the Robustness of a UAS Detect & Avoid Algorithm Open
In this article, we evaluate the robustness of a detect and avoid algorithm designed for the integration of UASs in terminal control areas. This assessment relies on a realistic modeling of navigation accuracy on positions and velocities a…
View article: Integration of UAS in Terminal Control Area
Integration of UAS in Terminal Control Area Open
International audience
View article: Detect and Avoid, UAV Integration in the Lower Airspace Traffic
Detect and Avoid, UAV Integration in the Lower Airspace Traffic Open
International audience
View article: Detect & Avoid, UAV Integration in the Lower Airspace Traffic
Detect & Avoid, UAV Integration in the Lower Airspace Traffic Open
International audience
View article: Does ATM Need Centralized Coordination? Autonomous Conflict Resolution Analysis in a Constrained Speed Environment
Does ATM Need Centralized Coordination? Autonomous Conflict Resolution Analysis in a Constrained Speed Environment Open
The concept of Free-Flight, introduced in the 90s, opened a debate on the efficiency of letting aircraft deal with conflicts without any centralized control. Many models have been proposed for autonomous aircraft solvers but their efficien…
View article: FaCiLe: A Functional Constraint Library
FaCiLe: A Functional Constraint Library Open
FaCiLe is an open source constraint programming library over integer finite domain written in OCaml, a functional language of the ML family. It offers all usual constraint system facilities to create and handle finite domain variables, ari…
View article: Does ATM Need Centralized Coordination? Autonomous Conflict Resolution Analysis in a Constrained Speed Environment
Does ATM Need Centralized Coordination? Autonomous Conflict Resolution Analysis in a Constrained Speed Environment Open
The concept of free-flight, introduced in the 1990s, opened a debate on the efficiency of letting aircraft deal with conflicts without any centralized control. Many models have been proposed for autonomous aircraft solvers, but their effic…
View article: Optimized Flight Level Allocation at the Continental Scale
Optimized Flight Level Allocation at the Continental Scale Open
—As acknowledged by the SESAR program, current ATC systems must be drastically improved to accommodate the predicted traffic growth in Europe. This study aims at assessing the performance of 4D-trajectory planning and strategic deconflicti…
View article: Automated Mission Planning for a Fleet of Micro Air Vehicules
Automated Mission Planning for a Fleet of Micro Air Vehicules Open
The ENAC University is using and developping the Paparazzi UAV system, which aims to provide a free and fully autonomous autopilot for a fleet of MAV, including fixed wing and rotary wing MAVs. The Paparazzi project has now succeeded in pr…