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This paper investigates the robust feedback control problem associated with finite time attitude stabilization of a reentry reusable launch vehicle subject to plant uncertainties and external disturbance. An integral terminal sliding mode is proposed firstly to achieve finite time stability in the sliding mode. Then, a robust attitude control for a reentry reusable launch vehicle is derived using...
Considering the linear time-varying uncertain singular system, by using analysis method of matrix inequality, the concept of robust H8 stability and robust H8 stabilization for the system, matrix inequalities for this kind of systems are established, the problem of robust H8 stability for this kind of systems are transformed into solving the matrix inequality problem, the necessary and sufficient...
This paper mainly considered the Satellite components sensor location method considering time delay of the system information transmission under diagnostic criteria. A method of transferring the dynamic signed directed graph (SDG) to the static SDG was proposed. After that, technique on sensor location was researched using the static SDG. Means of defining the root nodes that represented the diagnostic...
A design method of robust fault-tolerant control for control systems with uncertain parameters and perturbation has been deduced by utilizing H∞ theory and state-feedback control law with a state observer. The robust stability conditions for control systems with sensor failure have been obtained by solving two Riccati equations. Numerical example is given to illustrate the validity of the obtained...
For the case of intercepting maneuvering target, A new nonlinear terminal guidance law with robustness is proposed by adopting nonlinear H∞ control theory. The mathematic model was built according to nonlinear kinematics relationship between missile and target whose acceleration as disturbance was introduced. Based on the terminal guidance law's measure of zeroing the line-of-sight angular rate and...
For the case of a three-dimensional interception, a new continuous nonlinear H∞ guidance law with robustness is proposed. The mathematic model was built according to relationship between missile and target whose acceleration as disturbance was introduced and considering two-order autopilot dynamic. Based on the method of zeroing the rate of line-of-sight angle, a global nonlinear H∞ control strategy...
According to the problem of attitude control for variable-bend-tail vehicle, the mathematics models are established and the robust attitude control system is proposed based on variable structure control theory. The movement model of the bend tail section is derived from considering the coupling mutual action between tail and front of vehicle, and the nonlinear mathematics dynamic model of variable-bend-tail...
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