Maneuver design for multiple aircraft conflict resolution

Ghosh, Ronojoy; Tomlin, Claire J.

doi:10.1109/acc.2000.878986

Cited by 42 publications

(22 citation statements)

References 10 publications

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“…Protocols or "rules of the road" may be defined just as easily for groups of more than 2 aircraft, yet proofs of safety become more complex. Results of safety proofs for a three aircraft "roundabout" (proposed in [20]) are presented in [31].…”

Section: Discussionmentioning

confidence: 99%

Safety verification of conflict resolution manoeuvres

Tomlin

Mitchell

Ghosh

2001

IEEE Trans. Intell. Transport. Syst.

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130

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We address the problem of generating provably-safe conflict resolution maneuvers for aircraft in uncertain environments. We assume that a maneuver is composed of a sequence of flight modes, which are segments of constant heading, of constant bank angle, or of constant airspeed. Each of these flight modes has associated to it the kinematics of the aircraft, and hence the maneuver is a hybrid system. While the flight modes are defined ahead of time, their sequencing and parameter values do not necessarily have to be. We present an algorithm for generating provably safe maneuvers, which is based on a general procedure for designing controllers for hybrid systems. The result is a maneuver, proven to be safe within the limits of the models used, which is a familiar sequence of commands easily executable by the flight management systems. The maneuvers may be viewed as protocols, or "rules of the road", and are well-defined for each conflict scenario. We present results for two example maneuvers.

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Section: Discussionmentioning

confidence: 99%

Safety verification of conflict resolution manoeuvres

Tomlin

Mitchell

Ghosh

2001

IEEE Trans. Intell. Transport. Syst.

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130

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“…This Λ function allows transforming the constrained optimization problem (13) in the non-constrained optimization problem …”

Section: From a Geometric Point Of View Requiredmentioning

confidence: 99%

“…In this approach each aircraft is considered as a charged particle and modified electrostatic equations are used to generate conflict resolution maneuvers [13]. Relevant drawback of this method is that computed solutions are not guaranteed to be feasible, once aircraft dynamic limitations have been assigned.…”

Section: Introductionmentioning

confidence: 99%

A novel 3D analytical algorithm for autonomous collision avoidance considering cylindrical safety bubble

Luongo

Corraro

Ciniglio

et al. 2010

2010 IEEE Aerospace Conference

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This paper presents an innovative 3D analytical algorithm for the resolution of the pair-wise noncooperative collision avoidance problem between aircrafts. The proposed algorithm addresses the above described problem by using an innovative approach, based on the consideration of a cylindrical safety bubble, and it is able to obtain an optimal three-dimensional analytical solution for this problem. This novel approach allows different minimum separations on the vertical and horizontal planes with respect to the nominal trajectory to be achieved, so minimizing the impact of the collision avoidance maneuver on surrounding traffic. Moreover, the algorithm has the very interesting feature that it does not require the solution of any non deterministic and/or iterative problem, resulting suitable for real-time applications. This is due to the capability of the algorithm to find a closed form solution for the kinematic optimization problem here considered. The solution of the collision avoidance problem requires the simultaneous change of all control variables (speed module, track and slope angles), aiming to assure the required safety level and, at the same time, to minimize aircraft deviation from the nominal trajectory. This system is mainly developed for unmanned aircraft vehicles, where high levels of autonomy (i.e. the avoidance maneuver is autonomously executed by a standard autopilot) are required, but it can also be used, as aid to pilots, in manned commercial aircrafts. The effectiveness of the algorithm is evaluated by means of numerical simulations, where suitable conflict scenarios, taking into account aircraft dynamics and on-board sensors errors and limitations, are considered. Scenarios where both aircrafts are equipped with the proposed collision avoidance algorithm or where both aircrafts are subjected to Visual Flight Rules are also considered. 1 2

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“…Par ailleurs, le modèle suppose que le pilotage soit totalement automatisé, ce qui rend difficile la présence d'un pilote dans l'avion. Des approches similaires utilisant des champs de potentiel sont testées par le département d'aéronautique de Berkeley [GT00], mais elles ne permettent pas pour l'instant de résoudre des conflitsà plus de trois avions, tout comme les méthodes neuronales testées au LOG(CENA-ENAC) 11 [DAN96] qui n'ont puêtreétendues aux cas de conflits complexes. Enfin, parmi les méthodes qui ont tenté une approche globale de la résolution sur des conflits complexes (plus de cinq avions), on peut citer tout d'abord les travaux de Féron [FMF99] : une méthode utilisant la programmation semi-définie est utilisée pour déterminer le sens de résolution de chaque paire d'avions en conflits.…”

Section: Approches Théoriquesunclassified

Algorithmes génétiques appliqués à la gestion du trafic aérien

Durand¹,

Gotteland²

2003

J3eA

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Maneuver design for multiple aircraft conflict resolution

Cited by 42 publications

References 10 publications

Safety verification of conflict resolution manoeuvres

Safety verification of conflict resolution manoeuvres

A novel 3D analytical algorithm for autonomous collision avoidance considering cylindrical safety bubble

Algorithmes génétiques appliqués à la gestion du trafic aérien

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