基于纯比例导引的拦截碰撞角约束制导策略

doi:10.7527/S1000-6893.2020.24277

Abstract

Abstract: Guidance law design with impact angle constraints is one of the key research problems in the missile guidance community. In this paper, the analytical solution of the Pure Proportional Navigation (PPN) guidance law against stationary targets is deduced based on that of the Ideal Proportional Navigation (IPN) guidance law against non-maneuvering targets. The analytical expressions of the relative range, the commanded acceleration, and the missile lead angle are obtained, followed by an introduction of the relationship among the final impact angle, the relative states, and the navigation gain of the PPN. Based on this relationship, the Guidance strategy with Impact Angle Constraints based on the PPN (PPNIACG) is proposed with two applications of this guidance strategy, i.e., interceptions with impact angle constraints in the vertical and horizontal planes, discussed. After that, taking the Trajectory Shaping Guidance (TSG) and the Optimal Impact Angle Control Guidance (OIACG) as reference, we demonstrate the interception performance of the PPNIACG through numerical simulation examples, revealing the effectiveness and robustness of the proposed PPNIACG for guiding missiles to hit the target with impact angle constraints.

Key words: missile guidance, pure proportional navigation, impact angle constraints, stationary targets, analytical solutions

CLC Number:

V448

LI Kebo, LIAO Xuanping, LIANG Yan'gang, LI Chaoyong, CHEN Lei. Guidance strategy with impact angle constraints based on pure proportional navigation[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2020, 41(S2): 724277-724277.

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Guidance strategy with impact angle constraints based on pure proportional navigation

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