摘要
针对有卫星失效下的导航星座,提出发射快速响应卫星的方法来对星座的空间构型进行重构,以实现修复和改善星座性能的目的.对快速响应任务中快速响应卫星的发射方式和入轨方式进行分析,建立快速响应卫星响应时间的数学模型;建立基于快速响应的重构构型优化模型,对优化问题中的优化变量、约束条件、目标函数进行分析;以北斗中MEO卫星失效为例,利用NSGA-Ⅱ算法对优化模型进行求解,并采用双层编码的方式对优化参数进行编码得到以星座性能和响应时间为目标函数下的Pareto前沿.从结果可以看出该重构方法能有效提升受损星座的性能,同时Pareto前沿中对应的所有重构策略中,响应时间均小于一天.
Aiming at the navigation constellation with disabled satellites,the method of launching quickresponse satellite is proposed to reconstruct the constellation＇s configuration,so as to achieve the purpose of repairing and improving constellation performance. Firstly,the launch mode and the orbit mode of fastresponse satellite in such task are analyzed,and a mathematical model of response time is established.Then,a reconfigurable configuration optimization model based on fast response is established,the optimization variables,constraints and objective functions in the optimization are analyzed. Finally,taking the failure of MEO satellite in Bei Dou as an example,NSGA-Ⅱ algorithm is used to solve the optimization model,and getting the Pareto front under the objective function of constellation performance and response time. The results show that the reconfiguration method can effectively improve the performance of the damaged constellation,and the response time is less than one day in all reconstruction strategies corresponding to the Pareto frontier.
作者
赵双
张雅声
戴桦宇
ZHAO Shuang;ZHANG Yasheng;DAI Huayu(Department of Graduate Management,Space Engineering University,Beijing 101416,China;Department of Space Equipment,Space Engineering University,Beijing 101416,China)
出处
《空间控制技术与应用》
CSCD
北大核心
2018年第4期26-33,共8页
Aerospace Control and Application
关键词
快速响应
构型重构
响应时间
快速轨道
quick response
configuration reconstruction
response time
rapid orbit
