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定制化保持环约束下控制量优化算法设计

Design of Control Quantity Optimization Algorithm under Customized Holding Loop Constraints
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摘要 针对大数量卫星轨迹保持控制策略自动快速计算的需求,开展了定制化保持环指标下卫星轨道控制量计算优化设计研究。在分析回归轨道特性基础上,优化了轨迹网预报参考基准计算方法,以历史精密星历构造伪观测数据,计算平均大气阻尼系数,将其作为轨迹网精密预报模型的输入,设计基于迭代修正的轨道控制量自动计算方法,通过合理选择初值、调控控制量粗筛区间,设置迭代终止门限,加快搜索速度。仿真结果表明,该方法能够快速完成卫星轨迹环到达指定西边界的控制量自动计算,为后续大数量卫星例行轨控策略高效自动计算提供理论支撑。 In response to the demand for automatic and rapid calculation of control strategies for maintaining the trajectory of a large number of satellites,research is implemented for the optimization design of satellite orbit control quantity calculation under the customized maintenance loop indicators.The optimization algorithm for satellite orbit control variables under customized maintenance loop indicators is studied.On the basis of analyzing the characteristics of the regression orbit,the calculation method of the reference benchmark for trajectory network prediction is optimized.Pseudo observation data is obtained by using historical precision ephemeris,and the average atmospheric damping coefficient is calculated as input for the trajectory network precision prediction model.An automatic calculation method for trajectory control quantity based on iterative correction is designed,which accelerates the search speed by reasonably selecting initial values,adjusting the coarse screening interval of control quantity and setting iteration termination thresholds.The simulation results show that this the automatic calculation of control variables for satellite trajectories that reaches the specified western boundary can be quickly completed by using this method which provides theoretical support for the automatic calculation of routine orbit control strategies for a large number of satellites in the future.
作者 王露莎 杨国昌 曾光 薛永泰 WANG Lusha;YANG Guochang;ZENG Guang;XUE Yongtai(Key Laboratory of Spacecraft In-Orbit Fault Diagnosis and Maintenance,Xi’an 710043,China)
出处 《航天控制》 CSCD 2024年第5期62-68,共7页 Aerospace Control
关键词 定制化 保持环 轨道控制量 Customization Retaining ring Track control quantity
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