This article presents the development of a nonlinear optimal guidance to control the impact angle for an acceleration-constrained and speed-varying interceptor against a stationary target. The interceptor's velocity varies due to aerodynamic forces and gravity, while the constraints of maximal admissible acceleration and zero terminal acceleration are considered. The zero terminal acceleration imposes a terminal control constraint for the corresponding optimal control problem. To address this, a regularization term is incorporated to the cost function to ensure compliance with the zero terminal acceleration condition. A saturation function is then utilized to enforce the maximal admissible acceleration constraint, preserving the smoothness of the optimal control and providing a safety margin. To enable real-time implementation, a parameterized system is established to generate optimal trajectories for training a neural network. Furthermore, a combined guidance strategy is employed, integrating the nonlinear nature of the neural network-based approach with the convergence performance of a linear feedback guidance. Consequently, the proposed approach generates optimal guidance commands that achieve interceptions with minimal terminal accelerations, as verified by numerical simulations.
Nonlinear Optimal Impact Angle Control Guidance With Acceleration Constraints
IEEE Transactions on Aerospace and Electronic Systems ; 61 , 4 ; 8907-8921
01.08.2025
2166158 byte
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Generalized optimal impact-angle-control guidance with terminal acceleration response constraint
Online Contents | 2017
|Generalized optimal impact-angle-control guidance with terminal acceleration response constraint
SAGE Publications | 2017
|