考虑测控约束的非特殊点双冲量变轨规划算法研究

Research on Non-special Points Two-impulse Orbit Transfer Planning with Tracking,Telemetry and Control Constraints

非特殊点双冲量变轨问题中,使用近地点远地点双冲量变轨可以得到最优的速度增量,但没有考虑测控覆盖范围的约束。针对这个问题,对一般椭圆轨道的双脉冲变轨问题进行了介绍,在此基础上,将测控约束与非特殊点双脉冲变轨问题进行综合考虑,借助轨道外推、测控覆盖分析得到一套变轨规划算法,能够在考虑测控覆盖的约束下得到非特殊点双冲量变轨的最优解。仿真结果表明,规划算法优化出的速度增量与特殊点变轨相比增加很少,且发动机工作期间满足测控约束。

The problem of non-special points two-impulse orbit transfer was studied. In general,the application of special points orbit transfer method can get optimal result. However,this method doesn't take into account the tracking,telemetry and control( TT&C) constraints. In this paper,the two-impulse transfer of ellipse orbit was introduced at first. Then,considering the TT&C constraints,the method of orbit extrapolation and TT&C coverage analysis were used to get a new algorithm. Simulation result shows that the velocity increment obtained by the new algorithm is only a little more than that of the optimal result,and can meet the TT&C constraints during the engine firing.