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| Midcourse Guidance Method with Complex Constraints for Interceptor Missile Based on Improved MPSP |
| YU Mingjun1，2， ZHANG Jialiang2，3， SHEN Haidong1，2， CHEN Jinbao1，2 |
| 1. National Key Laboratory of Aerospace Mechanism， Nanjing University of Aeronautics and Astronautics，
Nanjing 211106， Jiangsu， China； 2. College of Astronautics， Nanjing University of Aeronautics and
Astronautics， Nanjing 211106， Jiangsu， China； 3. Shanghai Electro-Mechanical Engineering
Institute， Shanghai 201109， China |
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Abstract To address the challenge of online optimal trajectory generation for interceptor missiles against near-space hypersonic targets under complex constraints, this paper proposes a trajectory shaping midcourse guidance method based on improved model predictive static programming (MPSP). Firstly, the midcourse-terminal handover conditions satisfying impact angle constraints are analyzed, and a midcourse trajectory optimization problem under complex constraints is formulated. Secondly, considering the influence of initial trajectory angles on optimization results, an adjustable initial state matrix is introduced to achieve online generation of optimal initial values. Thirdly, based on satisfying handover constraints, the performance index function incorporating state optimality is improved to realize trajectory optimization with optimal terminal velocity. Finally, numerical simulations are conducted through constructing typical hypersonic target interception scenarios, and the results verify the effectiveness and superiority of the proposed midcourse guidance strategy.
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Received: 08 January 2026
Published: 04 August 2026
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2026, Vol. 9 
