기동모델이 변침기동 탄도탄 추적에 미치는 영향에 대한 고찰

Abstract

This paper addresses the maneuvering ballistic target tracking problem for advanced missile defense systems. Based on the fact that the performance degradation of the existing tracking filters is mainly caused by the uncertainties in motion model of a ballistic target, an explicit maneuver model is introduced by utilizing a prior knowledge on the lift-induced drag characteristics. This model exploits the constraints among the ballistic coefficients, which enables us to design a tracking filter with more reliable target tracking performance in practice. Moreover, since the mismatch between our explicit ballistic target maneuver model and the real target motion leads to the bias of the residual sequence of the tracking filter, this property can also be used for target classification or recognition. Through simulation using a typical ballistic target tracking scenario, it is demonstrated that the proposed filter provides superior and reliable maneuvering ballistic target tracking performance.