16 resultados para Shooting contests
Filtro por publicador
- Aberdeen University (1)
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- Duke University (1)
- eResearch Archive - Queensland Department of Agriculture; Fisheries and Forestry (3)
- Gallica, Bibliotheque Numerique - Bibliothèque nationale de France (French National Library) (BnF), France (1)
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- Universidad del Rosario, Colombia (3)
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- Universidade Federal do Rio Grande do Norte (UFRN) (6)
- Universidade Metodista de São Paulo (2)
- Universitat de Girona, Spain (8)
- Universitätsbibliothek Kassel, Universität Kassel, Germany (2)
- Université de Montréal (2)
- Université de Montréal, Canada (10)
- University of Michigan (94)
- University of Queensland eSpace - Australia (8)
- University of Southampton, United Kingdom (1)
- University of Washington (5)
- WestminsterResearch - UK (1)
Resumo:
This article addresses the problem of determining the shortest path that connects a given initial configuration (position, heading angle, and flight path angle) to a given rectilinear or a circular path in three-dimensional space for a constant speed and turn-rate constrained aerial vehicle. The final path is assumed to be located relatively far from the starting point. Due to its simplicity and low computational requirements the algorithm can be implemented on a fixed-wing type unmanned air vehicle in real time in missions where the final path may change dynamically. As wind has a very significant effect on the flight of small aerial vehicles, the method of optimal path planning is extended to meet the same objective in the presence of wind comparable to the speed of the aerial vehicles. But, if the path to be followed is closer to the initial point, an off-line method based on multiple shooting, in combination with a direct transcription technique, is used to obtain the optimal solution. Optimal paths are generated for a variety of cases to show the efficiency of the algorithm. Simulations are presented to demonstrate tracking results using a 6-degrees-of-freedom model of an unmanned air vehicle.