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| 基于修正线性组合模型的原子钟钟差预报 | |
| 引用本文： | 王继刚,胡永辉,何在民,武建锋,马红皎,王康.基于修正线性组合模型的原子钟钟差预报[J].天文学报,2011,52(1):54-61. |
| 作者姓名： | 王继刚 胡永辉 何在民 武建锋 马红皎 王康 |
| 作者单位： | 1. 中国科学院国家授时中心,西安,710600;中国科学院研究生院,北京,100049;淮海工学院测绘工程学院,连云港,222005 2. 中国科学院国家授时中心,西安,710600 3. 中国科学院国家授时中心,西安,710600;中国科学院研究生院,北京,100049 |
| 基金项目： | 武汉大学卫星导航与定位教育部重点实验室青年基金项目(GRC-2009012)资助 |
| 摘 要： | 原子钟钟差预报在时频工作中起着重要作用.目前常用的预报模型各有优缺点,为了综合各种预报模型特点,可以考虑组合这些模型预报的结果.针对线性组合模型预报钟差时存在的问题,提出了学习权的概念,以有效地利用各种精度信息,建立了修正组合预报模型.为了验证该方法的有效性,选取了4颗GPS卫星IGS(International GN... |
| 关 键 词： | 时间 方法:数据分析 |
Modified Linear Combination Model for Atomic Clock Prediction |
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| WANG Ji-gang,HU Yong-hui,HE Zai-min,WU Jian-feng,MA Hong-jiao,WANG Kang.Modified Linear Combination Model for Atomic Clock Prediction[J].Acta Astronomica Sinica,2011,52(1):54-61. | |
| Authors: | WANG Ji-gang HU Yong-hui HE Zai-min WU Jian-feng MA Hong-jiao WANG Kang |
| Institution: | WANG Ji-gang~(1,2,3) HU Yong-hui~1 HE Zai-min~(1,2) WU Jian-feng~(1,2) MA Hong-jiao~1 WANG Kang~(1,2) (1 National Time Service Center,Chinese Academy of Sciences,Xi'an 710600) (2 Graduate University of Chinese Academy of Sciences,Beijing 100049) (3 Department of Geomatic Engineering,Huaihai Institute of Technology,Lianyungang 222005) |
| Abstract: | The atomic clock prediction plays an important role in time and frequency community.Because the conventional prediction models have advantages and limitations, the results of these models can be combined to synthesize the characteristics of various kinds of models.The combination model(CM) is constructed to predict the atomic clock. Actually,the results of CM are the weight averages of the results of single models.Considering the problem occurring in long clock time series when using CM,learning weight is p... |
| Keywords: | time methods data analysis |
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