| Tuna Gün Aksu |
Middle East Technical University, Aerospace Engineering Department & Specialist Design Engineer, ROKETSAN, Cruise Missile Systems, 06780, Ankara, Turkiye. | | Özgün Dülgar |
Lead Design Engineer, ROKETSAN, Cruise Missile Systems, 06780, Ankara, Turkiye. | | Halil Ersin Söken |
Assoc. Prof. Dr., Middle East Technical University, Department of Aerospace Engineering, 06800, Ankara, Turkiye. |
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| Abstract:
Sea-skimming missiles are missiles which fly very close to sea surface. This is to avoid detection by radar or make it difficult for defense systems to intercept the missile. Sea-skimming missiles are expected to descend to the surface of the water to start avoiding detection as early as possible right after launch. However, this steep descent is a challenging task because of the platform movements, ballistic phase with the booster, and different environmental conditions. It is also expected that the missile's descent should be fast without any overshoot because of the sea below. Thus, a robust and rapid descent control system is one of the main challenges for sea-skimming missiles. The present study proposes modified proportional-derivative controller with predictive model for calculating the system input for the powered descent to the sea surface, with no or minimum overshoot. The effectiveness of the proposed method is evaluated through extensive simulations and compared against traditional control approaches. Results for various different scenarios, which include booster thrust vector misalignment, different launch and environmental conditions, are investigated to test the robustness of the proposed algorithm.
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View PDF CEAS-GNC-2024-102