Energy-constrained motion planning for information gathering with autonomous aerial soaring
- Publication Type:
- Conference Proceeding
- Citation:
- Proceedings - IEEE International Conference on Robotics and Automation, 2013, pp. 3825 - 3831
- Issue Date:
- 2013-11-14
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06631115.pdf | Published version | 2.05 MB |
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Autonomous aerial soaring presents a unique opportunity to extend the flight duration of Unmanned Aerial Vehicles (UAVs). In this paper, we examine the problem of a gliding UAV searching for a ground target while simultaneously collecting energy from known thermal energy sources. The problem is posed as a tree search problem by noting that a long-duration mission can be divided into similar segments of flying between and climbing in thermals. The algorithm attempts to maximise the probability of detecting a target by exploring a tree of the possible thermal-to-thermal transitions to a fixed search depth and executing the highest utility plan. The sensitivity of the algorithm to different search depths is explored, and the method is compared against a locally-optimal myopic search algorithm. In larger, more complicated problems, the suggested method outperforms myopic search by sacrificing short-term utility to reach more valuable exploration areas later in the mission. © 2013 IEEE.
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