A high efficiency orbit screening method for space debris collision prediction
-
摘要: 在航天器碰撞预警工作中, 为节省计算时间, 需要从大量空间目标中筛选出 可能的危险目标, 计算碰撞概率等参量并进行风险评估. 通常采用的筛选方 法包括高度筛选、几何筛选和时间筛选三步, 不同文献中后两步筛选的算 法略有不同, 同时各方法均难以实现预报三天的快速碰撞预警. 本文通过充 分考虑一阶摄动项对目标轨道的影响, 改进了时间筛选算法, 并在其后增加 了距离筛选, 将筛除比例从通常的大约99%提高到99.97%, 为实现快速碰 撞预警工作提供了理论支持. 通过对实测数据的计算比较, 验证了方 法的正确性及高效性.Abstract: In general, there are three prefilters for orbit screening, namely height prefilter, geometrical prefilter and time prefilter. The algorithms of the last two prefilters are slightly different in literatures. The Methods offered by references can hardly be competent in fast collision warning for three days. In this paper, a new orbit screening method is introduced, which can highly improve the screening efficiency and hence reduce the computation time for space debris collision predictions. In this method, the time prefilter algorithm is improved by giving more consideration to the first order perturbation of the target orbit. After that, a distance prefilter is added, which screens through the minimum distance between two objects. As a result, the ratio of objects excluded from the candidates can be improved from about 99% to 99.97%. The correctness and high efficiency of this method got verified through the calculation of the measured data. Therefore, this method can be treated as a theoretical basis for three-day fast collision warning.
-
[1] Committee on Space Debris. Orbital Debris—A Technical Assessment[M]. Washington: National Academy Press, 1995. 17-30 [2] Liu Jing, Wang Ronglan, Zhang Hongbo, et al. Space debris collision prediction research[J]. Chin. J. Space Sci., 2004, 24(6):462-469. In Chinese (刘静, 王荣兰, 张宏博, 等. 空 间碎片碰撞预警研究[J]. 空间科学学报, 2004, 24(6):462-469) [3] Hoots F R, Roehrich R L. Models for Propagation of NORAD Element Sets[R]. Spacetrack Report No.3, 1988 [4] Vallado D A, Crawford P, Hujsak R, et al. Revisiting Spacetrack Report #3[R]. Keystone: The AIAA/AAS Astrodynamics Specialist, 2006 [5] Hoots F R, Crawford L L, Roehrich R L. An analytic method to determine future close Approaches between satellites[J]. Celes. Mech., 1984, 33:143-158 [6] Zheng Qinyu, Wu Lianda. A Computation method to warn the collision event between space probe and debris[J]. Acta Astron. Sin., 2006, 45(4):422-427. In Chinese (郑勤余, 吴连大. 卫星与空间碎片碰撞预警的快速算法[J]. 天文学报, 2006, 45(4):422-427) [7] Hu Songjie. A new rapid method for screening dangerous targets in collision risk assessment[C]//TT&C Technology Seminar. Beijing: Chinese Society of Astronautics, 2006. 84-88. In Chinese (胡松杰. 碰撞风险评估中危险 目标快速筛选新方法[C]//航天测控技术研讨会. 北京: 中国宇航学会, 2006. 84-88) [8] Wu Lianda. Track Satellites and Space Debris and Detection[M]. Beijing: China Science and Technology Press, 2011. In Chinese (吴连大. 人造卫星与空间碎片的轨道和探测[M]. 北京: 中国科学技术出版社, 2011) [9] Wei Dong, Zhao Changyin. SGP4/SDP4 model accuracy analysis[J]. Acta Astron. Sin., 2009, 50(3):332-339. In Chinese (韦栋, 赵长印. SGP4/SDP4模型精度分析[J]. 天文学报, 2009, 50(3):332-339) [10] Liu Lin, Hu Songjie, Wang Xin. An Introduction of Astrodynamics[M]. Nanjing: Nanjing University Press, 2006. In Chinese (刘林, 胡松杰, 王歆. 航天动力学引论[M]. 南京: 南京大学出版社, 2006) [11] Liu Lin. Orbit Theory of Spacecraft[M]. Beijing: National Defense Industry Press, 2000. In Chinese (刘林. 航天器轨 道理论[M]. 北京: 国防工业出版社, 2000)
点击查看大图
计量
- 文章访问数: 2525
- HTML全文浏览量: 97
- PDF下载量: 860
- 被引次数: 0