大气层外拦截器偏置导引律设计

为了实现在拦截末端对目标的观测，针对导引头安装在导弹头部的大气层外拦截器设计了偏置导引律。首先分析了拦截器姿控能力、视线转率和偏置距离之间的关系，然后在考虑弹一目相对距离的估计误差和视线转率测量噪声的条件下，通过预测控制方法设计了对于视线转率和弹一目相对距离误差鲁棒性强的导引律。仿真结果表明，在视线转率和弹一目相对距离测量不准确的情况下，应用该导引律能够实现偏置观测。

Design on Biased Guidance Law of Exoatmospheric Interceptor

To realize observations on the target at the end of interception, the biased guidance law of exoatmospheric interceptor with seeker on head is designed. The relations among attitude control ability of interceptor, line-of-sight rate and biased distance are analyzed. Then in considering of estimation error of relative distance and measurement noise of line-of-sight rate, the biased guidance law is designed with the predictive control method. The simulation results show that the guidance law designed on predictive con- tro] method can realize biased observation.