Guidance Synthesis for Evasive Maneuver of Anti-Ship Missiles Against Close-In Weapon Systems

• Published in: IEEE transactions on aerospace and electronic systems Vol. 46; no. 3; pp. 1376 - 1388
• Main Authors: Kim, Yoon-Hwan, Ryoo, Chang-Kyung, Tahk, Min-Jea
• Format: Journal Article
• Language: English
• Published: New York IEEE 01.07.2010; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Acceleration; Control system synthesis; Error correction; Lagrangian functions; Law; Lyapunov method; Maneuvers; Missiles; Navigation; Optimal control; Optimization; Optimization methods; Proportional navigation; Synthesis; Weapon systems; Weapons
• ISSN: 0018-9251; 1557-9603
• DOI: 10.1109/TAES.2010.5545195

In this paper, we propose a guidance synthesis method for enhancing anti-ship missiles' survivability against ship-borne CIWS (close-in weapon system). Using CEALM (coevolutionary augmented Lagrangian method), a direct optimization technique, an optimal control problem to minimize time-varying weighted sum of the inverse of aiming errors of CIWS is solved. The optimal evasive trajectory exhibits sinusoidal acceleration commands, which results in barrel-roll type evasive maneuvers. Inspired by the optimization results, a 3-dimensional biased proportional navigation guidance (PNG) law to induce a barrel-roll maneuver during the homing phase is proposed. Capturability of the proposed guidance law is proved by using the Lyapunov stability theory. A proper choice of the barrel-roll direction also guarantees that the missile altitude can be made lower bounded. Performance of the proposed guidance laws is compared with conventional PNG via simulations.