Design and Implementation of Higher-Order Sliding Mode Guidance Law

For the interception of maneuvering targets,a high precision guidance law is designed using higher order sliding mode approach. In the guidance law design,to cope with the target maneuver,sliding variable is designed based on augmented proportional navigation. Considering the second order missile dynamics,second order sliding mode guidance law is designed. In the guidance law implementation,high gain extended state observer technique is used to estimate guidance information. Numerical simulation results show the effectiveness of the proposed method.