| 空间目标碰撞概率的显式表达式及影响因素分析 |
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| 引用本文： | 白显宗,陈磊.空间目标碰撞概率的显式表达式及影响因素分析[J].空间科学学报,2009,29(4). |
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| 作者姓名： | 白显宗 陈磊 |
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| 作者单位： | 国防科学技术大学航天与材料上程学院,长沙,410073 |
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| 摘 要： | 在圆轨道情况下推导了空间目标碰撞概率的显式表达式,将碰撞概率表示为空间目标交会几何条件(过交线高度差、过交线时间差、轨道夹角等)和RSW坐标系误差方差的显式函数.根据显式表达式对碰撞概率的影响因素进行了分析,研究了过交线高度差、过交线时间差、轨道夹角、位置预报误差、等效半径等因素对碰撞概率的影响,得出了一些有意义的结论.
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| 关 键 词： | 空间碎片 碰撞概率 显式表达式 高度差 时间差 轨道夹角 |
Explicit Expression and Influencing Factor Analysis of Collision Probability Between Space Objects |
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| BAI Xianzong,CHEN Lei.Explicit Expression and Influencing Factor Analysis of Collision Probability Between Space Objects[J].Chinese Journal of Space Science,2009,29(4). |
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| Authors: | BAI Xianzong CHEN Lei |
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| Institution: | College of Aerospace and Materials Engineering;National University of Defense Technology;Changsha 410073 |
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| Abstract: | The explicit expression of the collision probability is deduced under the assumption that the orbit is a circle.The collision probability is expressed as an explicit function of the encounter geometry(crossing altitude difference and time difference of the line of intersection of the two orbital planes,orbital planes included angle,etc) and position error variance in RSW coordinates.With the help of the explicit expression,the influencing factors of the collision probability were analyzed. Effects of factor... |
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| Keywords: | Space debris Collision probability Explicit expression Altitude difference Time difference Orbital planes included angle |
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