红外探测阵列对固体导弹尾焰跟踪定位的研究

通过分析研究建立了前视红外探测阵列ＦＬＩＲ（Ｆｏｒｗａｒｄ Ｌｏｏｋｉｎｇ Ｉｎｆｒａ－Ｒｅｄ）对导弹进行精确跟踪、定位的数学模型，其中包括导弹的运动模型、大气干扰模型和探测阵列的观测模型。利用探测阵列ＦＬＩＲ的原始观测数据，扩展卡尔曼滤波器（ＥＫＦ）精确跟踪导弹目标。由于导弹与探测器的距离较远，故为视为点目标。导弹在探测阵列上投影的位置由两部分组成：导弹真实运动位置和由于大气干扰造成的偏移。滤波

A Study on Missile Plume Tracking and Localizing by Means of Forward? Looking Infra-Red (FLIR)

The basic problem addressed in this paper is the accurate tracking and localizing of a dynamic target using outputs from a Forward Looking Infra Red (FLIR) sensor. The target dynamics model, atmospheric turbulence model and measurements model are established. In this algorithm, an extended Kalman filter (EKF) processes the raw intensity measurements from the FLIR to produce target estimates. The apparent location of the target is the sum of true dynamics and atmospheric turbulence. At last, a Monte Carlo method analysis is conducted to determine the performance of the filter.