| 利用ARMA模型改进GPS高程时间序列的研究 |
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| 引用本文： | 杨强,党亚民,秘金钟.利用ARMA模型改进GPS高程时间序列的研究[J].北京测绘,2007(3):13-15,8. |
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| 作者姓名： | 杨强 党亚民 秘金钟 |
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| 作者单位： | 武汉大学测绘学院,湖北,武汉,430079;中国测绘科学研究院大地测量与地球动力学研究所,北京,100039;中国测绘科学研究院大地测量与地球动力学研究所,北京,100039 |
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| 摘 要： | ARMA可用于时间序列建模,本文利用ARMA模型改进了部分IGS连续跟踪站GPS高程时间序列。计算了改进前后时间序列的线性速度,可以发现时间序列线性速度变化不明显,但精度却提高很多。通过研究表明利用ARMA模型有利于降低GPS高程时间序列噪声,可用于GPS高程时间序列的分析和研究。
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| 关 键 词： | GPS高程时间序列 ARMA建模 线性速度 |
| 收稿时间： | 2007-05-26 |
| 修稿时间： | 2007-05-26 |
Research of GPS Height Time Series Improved by ARMA Model |
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| YANG Qiang,DANG Ya-Min,BEI Jin-Zhong.Research of GPS Height Time Series Improved by ARMA Model[J].Beijing Surveying and Mapping,2007(3):13-15,8. |
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| Authors: | YANG Qiang DANG Ya-Min BEI Jin-Zhong |
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| Institution: | 1School of Geodesy and Geomatic;Wuhan University;Wuhan;430079;2Institute of Geodesy and Geodynamic;Chinese Academy of Surveying and Mapping;Beijing 100039 |
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| Abstract: | Autoregressive moving average (ARMA) method is applied to modeling GPS height time series of IGS fiducial stations. The paper calculated the linear velocities of before and after improved time series. And the velocities we get from improved time series is changed a litter but the precision is improved a lot. Through study, the noise of time series have decreased a lot compared to primary time series, and we can concluded that ARMA model is a good method for research GPS height time series. |
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| Keywords: | GPS height time series ARMA modeling Linear velocity |
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