EOP prediction using least square fitting and autoregressive filter over optimized data intervals

	EOP prediction using least square fitting and autoregressive filter over optimized data intervals
	Xu, XueQing1 ; Zhou, YongHong
刊名	ADVANCES IN SPACE RESEARCH
	2015-11-15
卷号	56 期号:10 页码:2248-2253
关键词	EOP prediction Least squares AR model Optimized data intervals
英文摘要	This study firstly employs the calculation of base sequence with different length, in 1-90 day predictions of EOP (the UT1-UTC and polar motion), by the combined method of least squares and autoregressive model, and find the base sequence with best result for different prediction spans, which we call as "predictions over optimized data intervals". Compared to the EOP predictions with fixed base data intervals, the "predictions over optimized data intervals" performs better for the prediction of UT1-UTC, and shows a significant improvement for the prediction of polar motion, and particularly promotes our competitive level in the international activity of Earth Orientation Parameters Combination of Prediction Pilot Project. (C) 2015 COSPAR. Published by Elsevier Ltd. All rights reserved.
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics ; Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences
研究领域[WOS]	Astronomy & Astrophysics ; Geology ; Meteorology & Atmospheric Sciences
关键词[WOS]	EARTH ORIENTATION PARAMETERS ; ATMOSPHERIC ANGULAR-MOMENTUM ; UNIVERSAL TIME ; KALMAN-FILTER ; MODEL ; COMBINATION ; LENGTH
收录类别	SCI
语种	英语
WOS记录号	WOS:000364251900019
公开日期	2016-01-19
内容类型	期刊论文
源URL	[http://119.78.226.72/handle/331011/28384]
专题	上海天文台_天文地球动力学研究中心上海天文台_空间导航与定位技术重点实验室上海天文台_行星科学重点实验室
作者单位	1.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China 2.Chinese Acad Sci, Key Lab Planetary Sci, Shanghai 200030, Peoples R China
推荐引用方式 GB/T 7714	Xu, XueQing,Zhou, YongHong. EOP prediction using least square fitting and autoregressive filter over optimized data intervals[J]. ADVANCES IN SPACE RESEARCH,2015,56(10):2248-2253.
APA	Xu, XueQing,&Zhou, YongHong.(2015).EOP prediction using least square fitting and autoregressive filter over optimized data intervals.ADVANCES IN SPACE RESEARCH,56(10),2248-2253.
MLA	Xu, XueQing,et al."EOP prediction using least square fitting and autoregressive filter over optimized data intervals".ADVANCES IN SPACE RESEARCH 56.10(2015):2248-2253.