EuroGNC 2019 Paper Abstract

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Paper FrM23.2

Barz, Isabelle (RWTH Aachen University), Hartmann, Philipp (RWTH Aachen University), Moormann, Dieter (RWTH Aachen University)

Near-Term Flight Path Adaption for Tilt-Wing Aircraft Obstacle Avoidance

Scheduled for presentation during the Regular Session "Guidance" (FrM23), Friday, April 5, 2019, 11:30−12:00, BL281.2

5th CEAS Conference on Guidance, Navigation and Control, April 3-5, 2019, Milano, Italy

This information is tentative and subject to change. Compiled on March 28, 2024

Keywords MAV trajectory planning, Aircraft trajectory planning, Onboard planning and execution

Abstract

Current research projects investigate unmanned tilt-wing applications to support rescue forces within rescue missions. To meet the practical challenges of such missions, integration into civil airspace and along with it avoidance of obstacles is necessary. Consequently, the flight path planning requires adjustments during flight to perform obstacle avoidance maneuvers. As obstacles are typically detected on short notice the flight path needs to be adapted in the near term. This work describes the generation of near-term horizontal avoidance paths that satisfy all flight dynamic constraints of a tilt-wing aircraft. Due to the tilt-wing's significant airspeed variation from hover to fast forward flight these constraints depend on the current flight speed and need to be adapted to the current flight situation. For avoidance path generation varying flight dynamic constraints are explicitly considered and estimated during flight. The paper presents a geometric approach for avoidance of static obstacles during any flight phase. This approach and the interaction between flight path controller, estimation of constraints and the path generation are discussed in detail. The overall flight guidance system was evaluated by simulations of example mission scenarios. Simulation results indicate a good performance and applicability of the overall system.

 

 

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