Abstract
A three-dimensional (3D) integrated guidance and control (IGC) design approach for pursuit-evasion game is proposed by using small-gain theorem in this paper. The 3D IGC model is formulated by combining nonlinear pursuer (missile) dynamics with nonlinear dynamics describing pursuit-evasion motion. Small-gain theorem and input-to-state stability (ISS) theory are iteratively utilized to design virtual controls (desired attack angle, sideslip angle and attitude angular rates), and eventually an IGC law is proposed. It is proven that, with the proposed IGC law, the stability of the overall system can be guaranteed, and the line-of-sight (LOS) rate converges into a small neighborhood of zero as well. The algorithm is also tested by using computer simulations against a maneuvering evader.
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