Application of model reference adaptive sliding mode control to forward compensation system in camera[J]. Optics and precision engineering, 2007, 15(6): 983-987.
Application of model reference adaptive sliding mode control to forward compensation system in camera[J]. Optics and precision engineering, 2007, 15(6): 983-987.DOI:
In order to improve the flight resolution of a aerial camera
a new Model Reference Adaptive Sliding Mode Control (MRAC-SMC) solution is presented. The model reference adaptive algorithm is used to identify time-variant system parameters and modify switching function of sliding mode controller
and the variable rate reaching law based on attenuation control is taken as the switching function of SMC to quicken the convergence in system and reduce the chattering caused by switching. The experiment results indicate that the velocity compensation error can be reduced by 60% and accordingly flight resolution can be increased by 200% by MRAC-SMC compared with PID control. Therefore
forward image motion compensation system based on MRAC-SMC can improve velocity tracking accuracy and robust performance and can overcome the effect of uncertain time-varying forces also.