Novel Particle Swarm Optimization Guidance for Hypersonic Target Interception with Impact Angle Constraint

Abstract

Considering that the terminal impact angle constraint can improve the interception performance of hypersonic target, a novel particle swarm optimization guidance (NPSOG) algorithm is proposed to satisfy the impact angle constraint. Two-dimensional dynamics engagement mode for hypersonic target interception is formulated. The performance index is positively correlated with the line-of-sight (LOS), LOS rate, and the relative distance between missile and target. The weight coefficients among the three are adaptively adjusted by the fuzzy logic controller. The particle swarm optimization (PSO) algorithm is utilized to generate the guidance commands. Numerical examples are given to verify the performance of the proposed guidance law in various engagement scenarios, and the performance of the algorithm is validated comparing with several heuristic guidance methods and nonheuristic guidance methods.

Computational Optimal Impact Angle Control Guidance Laws Weighted by Arbitrary Functions

“…In literature, a variety of guidance laws based on modern control theory have been devised to impose desired impact angle constraint, such as optimal guidance laws [4][5][6][7][8], sliding mode guidance laws [9][10][11][12], three-dimensional guidance laws [13][14][15][16], and L 2 gain-based guidance law [17]. It is known that the guidance laws based on optimal control theory can not only impose optimality in some particular performance indexes such as control effort and miss distance but also handle the terminal constraints easily.…”