过载系数未知的反舰导弹跃升俯冲过程跟踪算法

摘要

针对反舰导弹跃升机动过程的跟踪中，过载系数未知导致跟踪模型与导弹实际运动的不匹配问题，对状态变量进行扩展，应用扩展卡尔曼滤波对过载系数实时估计，实现对跃升俯冲机动过程的跟踪。仿真结果表明，该算法可准确估计出过载系数，显著提高跟踪性能。%Focused on the mismatch of tracking model with the real movement of modern anti-ship missile caused by unknown overcapacity factor,a maneuvering target tracking algorithm using Extended Kalman Filter (EKF) is presented. State variables are extended in order to improve tracking performance. The performance of the algorithm was compared with target tracking algorithms based on normal EKF. The simulation results show that the method is right and feasible to estimate accurate overcapacity factor.