基于C-W方程的近程导引制导与控制方法

Research on Control and Guide Methods of Short-Distance Guidance Based on C-W Equation

根据轨道动力学建立的航天器自主交会绝对运动与相对运动动力学方程,设计了基于C-W方程的近程导引段双脉冲和多脉冲制导与控制方案。采用闭环多脉冲制导,以控制精度和燃料消耗为指标,对双脉冲、等时间间隔多脉冲和闭环多脉冲制导进行比较。仿真结果表明:闭环6脉冲制导可用于近程导引段,有一定的工程应用价值。

According to the dynamic model of the absolute and relative motion established for the spacecraft automatic rendezvous by the orbit dynamics of spacecraft, the control and guide methods of the double-pulse and multi-pulse which were based on the C-W equation in this paper. The control and guide methods of the closed loop multi-pulse were adopted and the control accuracy and fuel consumption were used as index. The schemes of double- pulse, multiply pulse with the constant time span and closed-loop multiply pulse were compared. The results showed that the closed-loop 6 pulse could be used for the short-distance guidance phase, which was valuable in engineering.