- Volume 24 Issue 1
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3-Dimensional Path Planning and Guidance using the Dubins Curve for an 3-DOF Point-mass Aircraft Model
Dubins 곡선을 이용한 항공기 3자유도 질점 모델의 3차원 경로계획 및 유도
- 오수헌 (한국항공대학교 대학원 항공우주 및 기계공학과) ;
- 하철수 (한국항공대학교 대학원 항공우주 및 기계공학과) ;
- 강승은 (한국항공대학교 대학원 항공우주 및 기계공학과) ;
- 목지현 (한국항공대학교 대학원 항공우주 및 기계공학과) ;
- 고상호 (한국항공대학교 항공우주 및 기계공학과) ;
- 이용원 (리얼타임비쥬얼 기술연구소)
- Received : 2015.10.06
- Accepted : 2016.03.25
- Published : 2016.03.31
In this paper, we integrate three degree of freedom(3DOF) point-mass model for aircraft and three-dimensional path generation algorithms using dubins curve and nonlinear path tracking law. Through this integration, we apply the path generation algorithm to the path planning, and verify tracking performance and feasibility of using the aircraft 3DOF point-mass model for air traffic management. The accuracy of modeling 6DOF aircraft is more accurate than that of 3DOF model, but the complexity of the calculation would be raised, in turn the rate of computation is more likely to be slow due to the increase of degree of freedom. These obstacles make the 6DOF model difficult to be applied to simulation requiring real-time path planning. Therefore, the 3DOF point-mass model is also sufficient for simulation, and real-time path planning is possible because complexity can be reduced, compared to those of the 6DOF. Dubins curve used for generating the optimal path has advantage of being directly available to apply path planning. However, we use the algorithm which extends 2D path to 3D path since dubins curve handles the two dimensional path problems. Control law for the path tracking uses the nonlinear path tracking laws. Then we present these concomitant simulation results.
Supported by : 국방과학연구소
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