Citation: | WANG Wutian, HE Zhen, YUE Chenget al. Trajectory tracking control and optimal computation of attraction domain for aircraft in perching maneuvers[J]. Journal of Beijing University of Aeronautics and Astronautics, 2021, 47(2): 414-423. doi: 10.13700/j.bh.1001-5965.2020.0207(in Chinese) |
For the longitudinal movement of fixed-wing aircraft in perching maneuvers, the perching trajectory control design and the optimization method of attraction domains are investigated. First, according to the perching dynamics model and the constraints of states during the perching, the nominal trajectory was generated by using the general pseudo-spectral method. Then, based on this, a piecewise linear trajectory tracking control law was designed. Based on the Sum-of-Squares (SOS) method, the attraction domain of the trajectory control system is calculated to ensure that the UAV in the attraction domain can ultimately perch in the target area. Finally, the iterative computation algorithm of the attraction domain is further improved to expand the scope of the attraction domain. The simulation results verify the effectiveness of the trajectory tracking control law of the perching maneuver, and show that the attraction domain is enlarged by using the proposed computation algorithm of attraction domain.
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