扩展卡尔曼滤波的最优红外被动制导律

Study of Optimal IR Passive Guidance Law Based on Extended Kalman Filter

建立了导弹-目标攻击简化数学模型,运用线性二次型理论得出最优随机制导规律。通过建立伪测量方程,运用变增益扩展卡尔曼滤波技术求解了只有角度信号下的导弹被动制导问题。大量的数字仿真表明该导引规律具有收敛快、无偏差、精度高的特点。

A optimal guidance law is presented on the basis of the simplified missile-target attacking model by using LQR theory. By establishing pseudo-measurement function, IR passive homing question with Bearings Only Measurement (BOM) is solved using Modified Gain Extended Kalman Filter(MGEDF) and plenty of numerical simulations are done to show that the MGEKF performs better in aspects of convergence and accuracy.