高超声速飞行器末段突防-打击均衡自适应 博弈制导

To address the contradictory requirements between terminal maneuver penetration and precision strike for hypersonic flight vehicles，a penetration-strike balanced adaptive game guidance method based on the minimum safe penetration boundary is proposed. Firstly，according to the minimum safe penetration distance constraint and combining the theories of game of kind and optimal control，an expected zero-effort miss boundary is established to ensure successful penetration and avoid excessive maneuvering，which provides a theoretical basis for the division of penetration and strike tasks. The three-party game among the flight vehicle，interceptor and target is decomposed into two independent two-player game problems for penetration and strike. Secondly，based on the mapping relationship between zero-effort miss and line-of-sight angular rate，a unified finite-horizon differential game model for penetration and strike is constructed with consideration of terminal state constraints，time constraints and energy optimization criteria. Furthermore，considering the difficulty of analytical solution，a single-Critic adaptive dynamic programming method is designed to online approximate and solve the Hamiltonian-Jacobi-Isaacs equation， so as to obtain near-optimal penetration and strike guidance commands. Simulation results demonstrate that the proposed method can guarantee penetration safety while ensuring terminal strike performance with approximately controllable penetration miss distance，and the terminal mission success rate reaches 94. 9%.