A robust altitude control approach for sea skimming missiles

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Tezin Türü: Yüksek Lisans

Tezin Yürütüldüğü Kurum: Orta Doğu Teknik Üniversitesi, Mühendislik Fakültesi, Havacılık ve Uzay Mühendisliği Bölümü, Türkiye

Tezin Onay Tarihi: 2018

Öğrenci: ÖZGÜN DÜLGAR

Danışman: ALİ TÜRKER KUTAY

Özet:

A sea skimming missile is needed to be flown above mean sea level as low as it can, in order to decrease detectability; so that, survivability of the missile against counter attacks of the target ships is maximized. On the other hand, flying at very low altitude is a tough task under disturbances due to sea waves and measurement errors of various sensors used in height control loop. Thus, a robust altitude control system design is one of the main challenges among the other control algorithms for a sea skimming missile. In this study, Kalman filter based altitude control method is proposed and compared with the existing designs in literature. Moreover, determination of the optimal flight altitude is performed by estimating the instantaneous sea condition by Kalman filter. Simulation results for widely varied scenarios, in which different sensor errors, severe sea conditions, and limited computing power are taken into account, are shared. Results show that the proposed Kalman filter based altitude control application has satisfactory performance against many real world issues.