Command Filtered based Fault Tolerant Impact Angle-Constrained Integrated Guidance and Control for STT Missiles Intercepting Maneuvering Target

Targeting an accurate interception of maneuvering target by missiles with special attention to impact angle con-strained and miss distance in the presence of rudder fault, a novel command filtered based passive fault tolerant backstepping based integrated guidance and control law (CF-PFTIGC) and finite time extended state observer (FTESO) is designed. A coupled full-state integrated guidance and control (IGC) design model containing a rigorous feedback structure incorporating uncertainty, target maneuvering, fault, and cross-coupling will be considered. The CF-PFTIGC approach is applied to cater for faults in the rudder subsystem while ensuring precise missile-target interception. Subsequently, it successfully avoids the issue of 'complexity explosion.' Furthermore, the uniform boundedness of the closed-loop system is demonstrated by Lyapunov theory. Finally, the numerical simulations are utilized to verify the effectiveness of the proposed technique.