| 一种估计观测资料动态误差的方法 |
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| 引用本文： | 张晓祥,吴连大,鲁春林.一种估计观测资料动态误差的方法[J].天文学报,2003,44(1):65-71. |
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| 作者姓名： | 张晓祥 吴连大 鲁春林 |
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| 作者单位： | 中国科学院紫金山天文台,南京,210008;中国科学院国家天文台,北京,100012 |
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| 摘 要： | 给出一种较好的观测资料动态误差估计的方法：单圈改进法，该方法从轨道理论出发，有明确的物理背景，避免了最小二乘拟合阶数和Vondrak平滑法平滑因子不确定性，较为准确地估计了观测资料的动态误差．另外该方法能够反映观测资料的不正常的跳动，对准确地评估观测仪器的性能，进一步改进观测仪器是有益处的．
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| 关 键 词： | 观测资料 动态误差 单圈改进法 轨道理论 跳动 观测仪器 天体测量学 最小二乘拟合 |
| 修稿时间： | 2001年3月8日 |
A Method to Estimate the Dynamic Precision of Observation |
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| ZHANG Xiao-Xiang WU Lian-Da LU Chun-Lin.A Method to Estimate the Dynamic Precision of Observation[J].Acta Astronomica Sinica,2003,44(1):65-71. |
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| Authors: | ZHANG Xiao-Xiang WU Lian-Da LU Chun-Lin |
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| Abstract: | The Single Pass Orbit Improvement to estimate the dynamic precision of observation is proposed. It has distinctly physical meaning, and avoids the uncertainty of the power of polynomial and the smoothing factor e. Therefore, the dynamic precision obtained from Single Pass Orbit Improvement is more believable than from Least Square Fitting, and Vondrak Smoothing Method. In addition, Single Pass Orbit Improvement can reflect the abnormal jumpiness of observations, which is favorable for estimating the precision of instruments accurately and improving instruments further. |
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| Keywords: | Astrometry: dynamic precision least square fitting Celestial Mechanics: |
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