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This paper investigates the fault-tolerant controller for hypersonic aircraft in case of actuator fault. The robust adaptive controller is designed using command filtered back-stepping scheme. The uncertainty caused by the fault is approximated by randomly assigning nodes of the RBF single-hidden layer feedforward network (SLFN). The output weight is updated based on the Lyapunov synthesis approach...
The light field imaging produces the information on the direction of light ray, therefore the refocusing of the raw image shot with the light field camera can acquire high-resolution images of objects at different distances. This paper presents the light field image refocusing principles, rearranges raw images, transforms virtual image planes and integrates light rays, thus obtaining ideal refocused...
The stratosail has the tensile force of the tether but no engine thrust and the size and direction of the tensile force is constantly changing. Also the changes in the size and direction of wind speed have direct influence on the aerodynamic force and spatial position of the stratosail. The establishment of the stratosail's 6-DOF models includes the modeling of a flexible tether, that of the position...
The modeling of the stratosail of a stratospheric satellite includes both the modeling of a flexible tether and that of a rigid stratosail body, thus being a complicated and flexible-rigid coupled modeling process. This paper analyzes the stress of the stratosail and calculates the size and direction of the tensile force of the tether in different states in accordance with the moment-equilibrium principle...
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