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| 引用本文： | 孙张振,徐天河.?????????????????????????[J].大地测量与地球动力学,2013,33(5):16-20. |
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| 作者姓名： | 孙张振 徐天河 |
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| 作者单位： | 长安大学地质工程与测绘工程学院;航天天绘科技有限公司;地理信息工程国家重点实验室;西安测绘研究所 |
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| 基金项目： | 国家自然科学基金(41174008);全国优秀博士学位论文专项(2007B51) |
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| 摘 要： | ??????????????????????????????????ò????????г?????м?????????о???????????????????г?????17~19??????????????????????????????????????????????????
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| 关 键 词： | ???? ??????? LS+AR??? ?????? ???????λ |
INFLUENCE ON SHORT-TERM PREDICTION ACCURACY OF POLAR ??
MOTION BY EI Ni??o EVENT |
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| Sun Zhangzhen;Xu Tianhe.INFLUENCE ON SHORT-TERM PREDICTION ACCURACY OF POLAR ??
MOTION BY EI Ni??o EVENT[J].Journal of Geodesy and Geodynamics,2013,33(5):16-20. |
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| Authors: | Sun Zhangzhen;Xu Tianhe |
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| Institution: | Sun Zhangzhen;Xu Tianhe;School of Geology Engineering and Surveying ,Chang’an University;Aerors Inc;State Key Laboratory of Geo-information Engineering;Xi’an Research Institute of Surveying and Mapping; |
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| Abstract: | In order to reduce the influence of EI Ni??o event on polar motion prediction, the length selection of polar motion fitting series are studied for polar motion prediction. The results show that the accuracy of polar motion prediction can be improved in the time of EI Ni??o by extending the length of polar motion fitting series to 17-19 years. |
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| Keywords: | polar motion short-term prediction LS+AR model EI Ni??o space navigation and positioning |
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