弹目信息在纯方位末制导中的应用

在考虑“被动测量”的条件下，探讨了通过综合利用弹目信息来获取制导所需信息的方法，设计了一种适合被动雷达寻的末制导的运动跟踪滑模制导律；根据自适应推广Kalman滤波技术设计了目标跟踪滤波器；给出了简化的末制导数学模型，并进行了仿真计算。结果表明：所给方法可以较好地提高导弹的制导精度。

Improving Bearings-Only Terminal Guidance through Estimating Position, Velocity, and Acceleration of Target Relative to Missile

In our opinion,the terminal guidance law can be improved by estimating missile-target parameters(relative position,velocity and acceleration) from bearings-only measurement in passive guidance mode.In the full paper,we explain in much detail how to make such an estimation;here,we give only a briefing.A Motion Tracking Sliding-Mode Guidance(MTSMG) law is proposed to enhance guidance accuracy for the nonlinear control systems of homing missile terminal guidance.We utilize the target-tracking AEKF(Adaptive Extended Kalman Filtering) algorithm to provide the above mentioned estimated information to MTSMG algorithm proposed by us.Based on simulations,the conclusions are as follows:(1) high guidance accuracy is obtained with MTSMG algorithm;(2) the terminal trajectory of homing missile is smooth;(3) the overload of missile is permissible and changes placidly.