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| 基于数据深度加权的卫星轨道确定技术 | |
| 引用本文： | 潘晓刚,胡永刚,李强,周海银.基于数据深度加权的卫星轨道确定技术[J].宇航学报,2011,32(3). |
| 作者姓名： | 潘晓刚 胡永刚 李强 周海银 |
| 作者单位： | 1. 国防科技大学,长沙,410073 2. 中国酒泉卫星发射中心,兰州,732750 3. 湖南工业大学,株洲,412000 |
| 摘 要： | 将统计数据深度理论应用到抗差估计中,用数据深度作为衡量残差在整个样本集中地位的统计量.提出了基于数据深度加权的抗差估计算法.考虑到天基观测结构的复杂性,设计了天基测控的误差传播因子,并构造了模型结构权对定轨模型结构进行加权.在此基础上构造了基于数据深度加权和模型结构加权的M估计算法,证明了该算法的高崩溃点特性.设计了天基测控模式下的轨道确定仿真试验,试验结果表明该估计方法能有效抑制观测粗差和模型结构误差的影响,并且能显著提高定轨算法的鲁棒性. |
| 关 键 词： | 天基测控 M估计 数据深度 误差传播因子 |
Technology of Orbit Determination Algorithm Based on Data Depth Weight |
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| PAN Xiao-gang,HU Yong-gang,LI Qiang,ZHOU Hai-yin.Technology of Orbit Determination Algorithm Based on Data Depth Weight[J].Journal of Astronautics,2011,32(3). | |
| Authors: | PAN Xiao-gang HU Yong-gang LI Qiang ZHOU Hai-yin |
| Institution: | PAN Xiao-gang1,HU Yong-gang2,LI Qiang3,ZHOU Hai-yin1 (1.National University of Defense Technology,Changsha 410073,China,2.Jiuquan Satellite Launching Center,Lanzhou 732750,3.Hunan University of Technology,Zhuzhou 412000,China) |
| Abstract: | The statistic data depth theory is applied to robust estimation method.Then the residual error sequence is weighted by data depth to describe the degree of every residual error data in the sequence.At the same time,the error propagation factor is designed as well as the geometrical weight for the model configuration error in the orbit determination process.On the basis of both data depth weight and geometry weight,an M estimation algorithm is proposed,and corresponding characteristics such as high breakdown... |
| Keywords: | Space-based tracking telemetry and command M estimation Data depth Error propagation factor |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |