空间目标预警阈值确定分析

发布时间：2018-04-18 14:09

本文选题：空间目标 + 碰撞预警　；参考：《空间科学学报》2017年03期

【摘要】：针对目前通常采用计算碰撞概率来进行空间目标碰撞预警的方法,为提高其评判标准的精度以达到提高航天器精准预警的目的,分析了目前空间目标碰撞概率阖值确定过程的总体框架.对阈值确定过程中所涉及的误差协方差矩阵确定方法、碰撞概率计算以及碎片通量计算方法进行了研究。以国际空间站(ISS)为例,通过计算其所在空间的碎片通量,分析其轨道受空间环境的影响情况,并与早期结果进行比较,得出其以往的碰撞概率阈值可能被高估的结论.
[Abstract]:In view of the present method is usually used for space targets collision warning collision probability calculation, in order to improve the accuracy of the evaluation criteria in order to improve the precision of spacecraft warning purpose, analysis of the current space collision probability and value to determine the overall framework of the process. To determine the threshold method to determine the error covariance matrix involved in the process of collision probability the calculation and the debris flux calculation method is studied. In the international space station (ISS) as an example, through the calculation of the space debris flux, affected by the space environment of its orbit, and compared with the early results were obtained for the collision probability threshold conclusion may be overestimated.

【作者单位】：中国科学院国家天文台;中国科学院大学;
【基金】：国家自然科学基金项目(U1231114) 国家重大科研装备研制项目(ZDYZ2013-2)共同资助
【分类号】：V528

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