现代战争战场环境恶化,单一制导模式容易受到天气和干扰等影响,导弹制导性能降低,适应性差。雷达/红外双模制导模式综合了各传感器的优点,使制导系统具有更强的抗干扰能力、更高的命中精度。文中以工程化应用为背景,首先对主动雷达导引头和红外成像导引头测量信息采用方差自适应算法进行数据融合,再应用自适应的扩展卡尔曼滤波估计目标运动状态。最后,通过全弹道仿真证明了该方法的有效性。

In modern war, the environment of war field is worse than before, so single mode guidance is prone to be influenced by weather, jamming etc. These bring adverse effect on guidance performance and adaptability. The advantage of each sensor is used by radar/IR mode in guidance to improve the anti-jamming ability and tracking precision. Based on the project, at first the metrical information of radar seeker and IR seeker was fused through the method of adaptive variance. Then, EKF was used to estimate target motion. Finally, the ballistic simulations were presented to verify the validity of this method.