Backstepping Adaptive Sliding Mode Large Angle Attitude Maneuvering Control Method for Rigid Body Spacecraft
An adaptive sliding mode, spacecraft technology, applied in adaptive control, attitude control, non-electric variable control and other directions, can solve the problems of not considering the spacecraft, long transient response time, etc.
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[0081] The present invention will be further described below in conjunction with the description of the drawings and specific embodiments.
[0082] A backstepping adaptive sliding mode large-angle attitude maneuver control algorithm for a rigid-body spacecraft, comprising:
[0083] First, establish the kinematic equations and dynamic equations of the rigid body spacecraft based on quaternions as follows:
[0084]
[0085] Among them, q b is the spacecraft body coordinate system relative to the inertial coordinate system The pose quaternion of ; q b0 for q b The scalar part of q bv for q b The vector part of , and, q bv =[q b1 ,q b2 ,q b3 ] T ; is the spacecraft body coordinate system relative to the inertial coordinate system Attitude angular velocity; I 3 is a 3×3 identity matrix; for any x × express:
[0086]
[0087] Obviously, for any 3-dimensional column vector x, x × is an antisymmetric matrix. ; is the moment of inertia matrix (symmetri...
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