Derivation and simulation of three dimensional guidance law

In this paper, three dimensional guidance law was proposed. It differs from previous guidance laws in three aspects, considering the random maneuverability of target, considering the relative acceleration along the line of sight, considering the difference between the commanded acceleration and realistic acceleration of missile. The derivation of three dimensional guidance law was derived based on sliding mode control theory, the effectiveness of the derived guidance laws was validated through the three dimensional simulation, the future research work was also recommended finally.