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�������պ����ѧѧ�� 2007, Vol. 33 Issue (11) :1257-1260    DOI:
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Multivariable robust lateral-directional control design for W-shaped tailless aircraft
Xiao Hua, Wang Lixin*
School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

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Abstract�� With the W-shaped tailless aircraft which is based on forward-swept wing configuration and the integrated design of blended wing-fuselage took as a control object, by the linear quadratic Gaussian with loop transfer recovery (LQG/LTR) method of multivariable robust control, the aircraft′s lateral-directional control system was designed. The inherent instability of this special configuration, the problem of control system′s instability and lack of control accuracy which may be caused by the aircraft motion model′s uncertainty and random disturbance were solved. The simulation results show that the lateral-directional command can be followed accurately, and the control system not only has good robustness, but also has good regulating process, which satisfy the lateral-directional control design requests of the W-shaped tailless aircraft.
Keywords�� W-shaped tailless aircraft   linear quadratic Gaussian with loop transfer recovery   uncertainty   random disturbance   robustness     
Received 2006-11-28;
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About author: Ф ��(1981��),��,����������,˶ʿ��,xh@ase.buaa.edu.cn.
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Ф��,������.W����β�ɻ��ẽ������³���������[J]  �������պ����ѧѧ��, 2007,V33(11): 1257-1260
Xiao Hua, Wang Lixin.Multivariable robust lateral-directional control design for W-shaped tailless aircraft[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2007,V33(11): 1257-1260
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