遥感星座的效能分析与重构控制

Efficiency Analysis and Reconfiguration Control of Remote Sensing Constellation

低轨大规模星座的效能与重构分析对星座体系设计和系统维护具有重要意义。基于最新的遥感卫星星座,提出了综合指标评价函数,基于典型的低轨遥感星座系统,分析了其星座性能,并根据星座服务可用性的寿命预测模型分析其在轨服务故障特性,分析星座在不同故障模式下的星座剩余性能,并选择合理的星座重构优化策略对剩余星座进行优化重构,最后通过最优控制方法求解重构路径并进行LQR控制策略优化仿真,评估星座损坏前后和重构过程中星座的整体性能和重构方案的合理性。

The effectiveness and reconfiguration analysis of Leo large-scale remote sensing satellite constellation is of great significance to satellite constellation system design and system maintenance.This article first analyzed the performance of the latest remote sensing satellite constellation through a comprehensive index evaluation function.Then the feature of on-orbit service failure was analyzed according to the service availability of the life prediction model.The residual properties of the constellation in different failure modes were also introduced and the optimization strategy for the rest of the constellation to reconfiguration was optimized.Finally,the reconfiguration path was reconstructed by the optimal control method and the LQR control strategy was used for the simulation,which can assess the overall performance of the constellation in the process of damage and reconstruction and the rationality of the reconfiguration scheme.