| 测轨时序差分观测权阵的解析表达式 |
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| 引用本文： | 杜兰,张传定,郑勇,李杰.测轨时序差分观测权阵的解析表达式[J].飞行器测控学报,2006,25(3):68-71. |
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| 作者姓名： | 杜兰 张传定 郑勇 李杰 |
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| 作者单位： | 解放军信息工程大学测绘学院 河南郑州.450052 |
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| 摘 要： | 基于相关权逆阵和二次差分矩阵的对应关系,利用Delta函数的性质,推导了时序差分组合的相关权矩阵公式,并利用M atlab对解析表达式进行了数值验算。该公式可以直观地反映出差分组合观测量的统计相关信息。
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| 关 键 词： | 相关权逆阵 二次差分 相关权矩阵 Delta函数 |
| 收稿时间： | 2006-01-05 |
Formula of Weighting Matrix for Time-differencial Measurements |
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| DU Lan , ZHANG Chuan-ding, ZHENG Yong , LI Jie.Formula of Weighting Matrix for Time-differencial Measurements[J].Journal of Spacecraft TT&C Technology,2006,25(3):68-71. |
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| Authors: | DU Lan ZHANG Chuan-ding ZHENG Yong LI Jie |
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| Institution: | Zhengzhou Institute of Surveying and Mapping, Zhengzhou, Henan Province 450052 |
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| Abstract: | An analytical expression is presented for the weighting matrix of a set of time-differencial measurements based on the close relationship between covariance matrix and second-differencial matrix as well as the special property of Delta functions.Simulation by using Matlab verified the formula,which has the merits of directly reflecting the stochastic information of time-differencial measurements. |
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| Keywords: | Covariance Matrix Second-difference Weighting Matrix Delta Function |
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