| 长波授时附加二次相位因子ASF误差分析 |
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| 引用本文： | 李瑞敏,苏建峰,王娜.长波授时附加二次相位因子ASF误差分析[J].宇航计测技术,2012,32(3):17-20. |
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| 作者姓名： | 李瑞敏 苏建峰 王娜 |
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| 作者单位： | 1. 中国科学院研究生院,北京 100080;中国科学院国家授时中心,西安 710600
2. 中国科学院国家授时中心,西安,710600 |
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| 摘 要： | 为提高长波授时精度,分析了影响ASF误差的因素。主要针对米林顿法计算ASF中的地图测距误差、大地等效电导率误差和大地等效电导率区域分割误差,设计实验、采集数据、分析实验结果,并提出减小ASF误差的新方案。
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| 关 键 词： | 长波授时 附加二次相位因子 大地电导率 过渡区 |
Analysis the Error of the ASF in Long-wave Time Service |
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| LI Rui-min
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SU Jian-feng
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WANG Na.Analysis the Error of the ASF in Long-wave Time Service[J].Journal of Astronautic Metrology and Measurement,2012,32(3):17-20. |
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| Authors: | LI Rui-min SU Jian-feng WANG Na |
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| Institution: | 1. Graduate University of Chinese Academy of Sciences, Beijing 100080 ; 2. National Time Service Center, Chinese Academy of Sciences, Xi＇ an 710600) |
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| Abstract: | To improve the long-wave timing accuracy, the factors were analyzed that affected the errors of ASF. In the progress of calculated the ASF by Millington algorithm, experiments were designed to point at the errors of the map location, the ground conductivity and the region segmentation, then, col- lected data and analyzed the results. Finally, the new methods to reduce the errors of ASF put forward. |
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| Keywords: | time service Additional second-phase factors （ASF） Ground conductiv-ity ＋Transition region |
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