Nonlinear Adaptive Guidance Law for Missile Interception in 3-Dimension

Based on the kinematic relationship between the missile and target,a 3-dimensional model for missile interception was formulated in three-dimension space.Using measuring information and applying adaptive method,a new nonlinear guidance law was derived aiming at interception of non-maneuvering and maneuvering targets.The correctness of the guidance law was strictly proved by using Barbalat lemma and Lyapunov theory.The intercept guidance law can achieve global ultimate boundedness.Compared with the previous results,the proposed one is smooth and can be easily implemented,and avoids chattering which resulted from variable structure control law.Simulation results verify the effectiveness of the proposed guidance law.