新体制导引头的信号处理方式越来越复杂,造成了非常明显的信号处理延迟,这种纯延迟环节又严重影响着导引头随动系统的跟踪能力。首先采用相位裕度的概念定量分析了延迟大小对随动系统带宽的影响,然后针对目标、导弹、导引头空间运动关系的特点,介绍了一种基于机动目标“当前”统计模型和自适应Kalman预测滤波的探测器信号处理延迟补偿方案,采用探测器输出的跟踪误差和电位器输出的角度信息重构视线运动量测值,利用Kalman滤波获得当前时刻视线角位置的最优估计,进而得到当前时刻跟踪误差的预测值,取代被延迟的跟踪误差进行随动系统的闭环控制,仿真表明本方案有效可行。 The signal processing method of the new system seeker is more and more complicated, resulting in a very obvious signal processing delay. This pure delay has a serious impact on the follow-up capability of the seeker follow-up system. Firstly, the concept of phase margin is used to quantitatively analyze the influence of delay on the bandwidth of servo system. Then, aiming at the characteristics of the spatial movement of target, missile and seeker, a statistical model based on maneuvering target and “current” Kalman filter adaptive Kalman filter delay compensation signal processing program, the detector output error and the output of the potentiometer angle information reconstructed line of sight motion measurement, the use of Kalman filter to obtain the best moment of the current angular position estimation, and thus The prediction value of the tracking error is obtained at the current time, and the closed-loop control of the servo system is replaced by the delayed tracking error. The simulation results show that this scheme is effective and feasible.