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推广的卡尔曼滤波器可以予估目标的机动,使用这个予估量与二次最佳控制结合能够改进比例导引的性能。利用横向加速度计测量导弹横向加速度可以使推广的卡尔曼滤波器的阶次降为4阶。另外,对滤波器设计与制导规律设计使用单独的系统模型使得计算量的要求显著减小。模拟结果表明使用这种方法能使末端脱靶量显著减小。
The extended Kalman filter estimates the maneuver of the target and uses this estimate together with the second best control to improve the performance of the Proportional Guidance. Using transverse accelerometer to measure the lateral acceleration of missile can reduce the order of the extended Kalman filter to 4th order. In addition, the use of a separate system model for the design of the filter design and guidance leads to a significant reduction in the computational requirements. Simulation results show that using this method can significantly reduce the amount of terminal miss.