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http://dx.doi.org/10.5139/JKSAS.2003.31.8.050

Generation of an Optimal Trajectory for Rotorcraft Subject to Multiple Waypoint Constraints  

Choe,Gi-Yeong (인하대학교 항공우주공학과)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.31, no.8, 2003 , pp. 50-57 More about this Journal
Abstract
Controlling rotorcraft to fly precisely through multiple, irregularly, and closely spaced waypoints is a common and practical mission. However, finding an optimal trajectory for this kind of mission is quite challenging. Usability of traditional approaches such as inverse control or direct methods to this kind of problem is limited because of either limitation on the specification of the constraints or requirement of extensive computation time. This paper proposes a method that can easily compute the full trajectory and control history for rotorcraft to pass through waypoints while satisfying other general constraints of states such as velocities and attitudes on each waypoint. The proposed method is applied to rotorcraft guidance problems of slalom and linear trajectory in the middle of general curved trajectory. The algorithm is test for various situations and demonstrates its usability.
Keywords
rotorcraft guidance; optimal trajectory; optimal control; multiple waypoints; slalom motion;
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