A fault-tolerant control of inverse system based on LS-SVM and BBO

For the significance of the Near Space Hypersonic Vehicle(NSHV) at aspect of military and civilian and the huge losses of personnel and property when a fault occurs, it is significant to conduct fault-tolerant research for NSHV and avoid some catastrophic events. This paper presents a fault-tolerant control scheme of inverse system based on improved Least Squares Vector Machine(LS-SVM). The control system takes advantage of the superiority of LS-SVM in solving small sample, high dimension and local minima problems and uses the Biogeography-Based Optimization (BBO) to optimize parameters of SVM for the advantage of BBO in optimizing parameters. Then the inverse system based on LS-SVM is built. Finally, the simulation of NSHV in longitudinal channel demonstrated the effectiveness of the fault-tolerant control method.