Polynomial-Based Guidance Law Design for Various Target Motions

This paper aims to devise impact time guidance law for intercepting various types of targets with terminal angle constraint. The design of the guidance law is formulated in the range domain by using a virtual relative frame. Based on the thought of polynomial guidance, three unknown coefficients are introduced to design the guidance command. For simultaneously satisfying the terminal desired constraints, the analytical solution to the proposed law can be eventually obtained. The effectiveness and robustness of the proposed guidance law are successfully validated via numerous simulations under various target motions.