The Design of H_∞ Robust Guidance Law for Missile Interception

According to the characters of the missile intercepting the target,a robust guidance law is proposed by Lyapunov-like approach based on H∞ control theory.In this guidance law,the target maneuvers is regarded as bounded disturbances and missile acceleration as input control,trajectory performance can be changed through parameters setting,the solution of complex Hmiltao-Jacobi partial differential is not obligatory and the maneuvering target acceleration do not need to be predicted.The simulation results show this guidance law has strong robustness and excellent interception performances,and can restrain the exogenous disturbances effectively.