개인구독
소속 기관이 없으신 경우, 개인 정기구독을 하시면 저렴하게
논문을 무제한 열람 이용할 수 있어요.
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
이용수7
In this paper, an algorithm that can be applied actually to Precision Guided Munitions(PGM) that strike the fixed target was proposed. It is possible by improving the Impact Angle Control Guidance(IACG) law, one of the widely used guidance laws. IACG is the efficient guidance law which can strike the target for a desired angle by setting the impact angle of the PGM. The currently known optimal solution of conventional IACG can be obtained by setting the fixed guidance coefficient when the velocity of the PGM is constant. However, if there is a nonlinearity of velocity, the guidance command increase sharply as the PGM approach to the target. For this reason, it is difficult to apply the conventional IACG actually to vehicles with limited maneuverability.PGM can’t produce large maneuverability due to shape specificity and canard control. In order to apply IACG for these types of munition, a study was conducted to improve the conventional guidance law. Instead to apply the fixed guidance coefficient , known as the optimal solution, an algorithm was implemented that uses time-varying guidance coefficient. First, the guidance coefficient profile that has the optimal guidance energy is calculated through the trajectory optimization using the time-varying guidance coefficient as a variable, and the gain that can be obtained when the optimal time-varying guidance coefficient is applied is confirmed. After finding the tendency in various cases, an guidance algorithm was proposed that can be applied to strike the target at any range for minimum energy by determining the time-varying guidance coefficient through the neural network technique.
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