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�������պ����ѧѧ�� 2006, Vol. 32 Issue (03) :249-253    DOI:
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�������պ����ѧ �ѧԺ, ���� 100083
Design and simulation of BTT nonlinear controller for hypersonic vehicle
Li Yang, Chen Wanchun*
School of Astronautics, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

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ժҪ �߳����ٷ��������������Ա�һ��ķ�������Ϊ����,ѡ��BTT(Bank-to-Turn)����,����бת�似����������������������ε�Ҫ��,����֮������ѧϵͳ�����˿�ʱ�䡢���ط����Լ�ǿ����ϵ��ص�.��Ը߳����ٷ�������бת������Կ���������һ�ص�,������һ�ָ�Ϊ��Ч�ķ�����ϵͳ�Ŀ��Ʒ���,�������Զ�̬�漼��.���Ƚ����˸߳����ٷ������ķ�������ѧģ��,Ȼ����������㶯���۽�����ѧϵͳ���ܿ�״̬������Ϊ�������������2����,Ӧ�÷����Զ�̬�����۷ֱ�Կ����·�������·�������,���������·�������������Ϊ�����·������������ָ��,����������Ƶ�ϵͳ�ڸ߳������µ���бת���˶������˷�����֤.�����������ÿ���ϵͳ����ʵ����бת��,����������߳����ٷ������ȶ����е�Ҫ��.
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Abstract�� Aerodynamics effects of hypersonic vehicle are complex than that of common vehicle. Bank-to-turn(BTT) technique can satisfy the demands of hypersonic vehicle for aerodynamics shape, with which brings dynamics system the character of fast time-varying, strong coupling and high nonlinear. Against the character of the hypersonic vehicle bank-to-turn nonlinear controller, a more effective control method for nonlinear system was applied, which was nonlinear dynamic inversion technique. A nonlinear model was built. Then the dynamics controlled were separated into fast and slow variables in terms of singular perturbation theory. Two dynamic inversion control laws were designed for the fast and slow inversion loop. The outputs of outer loops were used as the inputs of inner loops. The above designed control laws were used to simulate according to the given bank-to-turn command in hypersonic flight conditions. The simulation results show that the control system can achieve bank-to-turn motion and guarantee the stability of the hypersonic vehicle.
Keywords�� nonlinear dynamic inversion   bank-to-turn   flight control systems   hypersonic     
Received 2005-06-19;
About author: �� ��(1981-),Ů,����������,˶ʿ��, liyang3250@sohu.com.
����, ����.�߳����ٷ�����BTT�����Կ�������������[J]  �������պ����ѧѧ��, 2006,V32(03): 249-253
Li Yang, Chen Wanchun.Design and simulation of BTT nonlinear controller for hypersonic vehicle[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2006,V32(03): 249-253
http://bhxb.buaa.edu.cn//CN/     ��     http://bhxb.buaa.edu.cn//CN/Y2006/V32/I03/249
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