Active vibration control for Flexible Spacecraft using an Adaptive Fuzzy Observer

A method of designing adaptive fuzzy observer and variable structure feedback control law is proposed,aiming at the active vibration suppression problem of flexible appendages for a class of flexible spacecrafts.The observer is a kind of nonlinear generalized Luenberger adaptive observer,which employs the fuzzy system to approximate the nonlinear function and does not need the attitude information of the spacecraft body.The simulation results show the validity of the presented method.