基于预测零控脱靶量的拦截器中制导段导引

Midcourse Guidance of Interceptor Based on Zero Effort Miss Forecasting

针对三维空间内的高速飞行目标,提出了一种基于预测零控脱靶量的中制导段导引方法。建立了拦截器与目标的相对运动关系模型,分析了确定修正轨道的约束条件,并在此基础上推导出修正轨道根数的计算方法。同时根据待增速度给出了推力定向和推力发动机工作时长的确定方法。仿真结果表明,该方法能有效实现拦截器中制导段的制导控制。

A midcourse guidance law based on zero effort miss forecasting is presented for intercepting a high-speed target in three-dimensional space. After constructing the model of the relative movement between target and interceptor, this paper analyzes restrictions of the corrections of the correctional orbit and also derives the computing method of correctional orbit and also derives the computing method of correctional orbit elements. Moreover, the formulae about working time and vector determination of thrust engine are given. Simulation results show that this method can effectively implement the midcourse guidance of the interceptor.