应用距离搜索的低轨空间碎片初始轨道确定方法
发布时间：2019-01-04 11:06
【摘要】：使用低轨天基光学望远镜扫描式观测低轨空间碎片,由于两者的相对运动较快,只能获得很短时间内的角度观测值(甚短观测弧段),使用传统的Gauss方法和Gooding方法很难得到精确的空间碎片初始轨道。为此,文章提出了一种新的方法,在给定的一组角度观测值中,通过搜索其中2个时刻的距离信息,将纯角度的初始轨道确定问题转换为基于2个位置矢量的初始轨道确定问题;再利用其他时刻的角度观测值进行检核和约束,筛选出最优的初始轨道结果。利用文章方法对空间碎片在10~60s内的503个观测弧段进行处理,结果表明,其定轨误差与角度观测值变化率有关。将文章方法所得结果与Gauss方法和Gooding方法进行比较,证明文章方法在解的成功率和精度上都显著优于其他2种方法,能很好地确定空间碎片的初始轨道。
[Abstract]:The scanning observation of low-orbit space debris using low-orbit space-based optical telescopes, due to their relatively rapid motion, results in only a very short period of angular observations (very short observation arcs), It is difficult to obtain accurate initial orbit of space debris by using traditional Gauss method and Gooding method. In this paper, a new method is proposed to search for the distance information for two of the given set of angle observations. The problem of determining the initial orbit of pure angle is transformed into the problem of determining the initial orbit based on two position vectors. Then the angle observations at other times are used to check and constrain, and the optimal initial orbital results are obtained. In this paper, 503 observation arcs of space debris in 10 ~ 60 s are processed. The results show that the orbit determination error is related to the rate of change of angle observation value. Compared with the Gauss method and the Gooding method, it is proved that the proposed method is superior to the other two methods in the success rate and accuracy of the solution, and the initial orbit of space debris can be well determined.
【作者单位】： 武汉大学测绘学院;北京空间飞行器总体设计部;
【基金】：国家自然科学基金(41474021)
【分类号】：V528
，
本文编号：2400203
[Abstract]:The scanning observation of low-orbit space debris using low-orbit space-based optical telescopes, due to their relatively rapid motion, results in only a very short period of angular observations (very short observation arcs), It is difficult to obtain accurate initial orbit of space debris by using traditional Gauss method and Gooding method. In this paper, a new method is proposed to search for the distance information for two of the given set of angle observations. The problem of determining the initial orbit of pure angle is transformed into the problem of determining the initial orbit based on two position vectors. Then the angle observations at other times are used to check and constrain, and the optimal initial orbital results are obtained. In this paper, 503 observation arcs of space debris in 10 ~ 60 s are processed. The results show that the orbit determination error is related to the rate of change of angle observation value. Compared with the Gauss method and the Gooding method, it is proved that the proposed method is superior to the other two methods in the success rate and accuracy of the solution, and the initial orbit of space debris can be well determined.
【作者单位】： 武汉大学测绘学院;北京空间飞行器总体设计部;
【基金】：国家自然科学基金(41474021)
【分类号】：V528
，
本文编号：2400203
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