A method of estimating GPS instrumental biases with a convolution algorithm

doi:10.1016/j.asr.2017.11.034

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	A method of estimating GPS instrumental biases with a convolution algorithm
	Li, Qi 1,2; Ma, Guanyi 2; Lu, Weijun 1,2; Wan, Qingtao 2; Fan, Jiangtao 2; Wang, Xiaolan 2; Li, Jinghua 2; Li, Changhua 2
刊名	ADVANCES IN SPACE RESEARCH
	2018-03-15
卷号	61 期号:6 页码:1387-1397
关键词	GPS DCB TEC Ionospheric Convolution GEONET
ISSN号	0273-1177
DOI	10.1016/j.asr.2017.11.034
英文摘要	This paper presents a method of deriving the instrumental differential code biases (DCBs) of GPS satellites and dual frequency receivers. Considering that the total electron content (TEC) varies smoothly over a small area, one ionospheric pierce point (IPP) and four more nearby IPPs were selected to build an equation with a convolution algorithm. In addition, unknown DCB parameters were arranged into a set of equations with GPS observations in a day unit by assuming that DCBs do not vary within a day. Then, the DCBs of satellites and receivers were determined by solving the equation set with the least-squares fitting technique. The performance of this method is examined by applying it to 361 days in 2014 using the observation data from 1311 GPS Earth Observation Network (GEONET) receivers. The result was crosswise-compared with the DCB estimated by the mesh method and the IONEX products from the Center for Orbit Determination in Europe (CODE). The DCB values derived by this method agree with those of the mesh method and the CODE products, with biases of 0.091 ns and 0.321 ns, respectively. The convolution method's accuracy and stability were quite good and showed improvements over the mesh method. (C) 2017 COSPAR. Published by Elsevier Ltd. All rights reserved.
资助项目	National Natural Science Foundation of China[11473045] ; National Natural Science Foundation of China[11403045] ; National Natural Science Foundation of China[11503040] ; National Key Research Program of China[2016YFB0501903] ; National Key Research Program of China[2016YFB0501904]
WOS关键词	TOTAL ELECTRON-CONTENT ; RECEIVER DIFFERENTIAL BIASES ; GLOBAL POSITIONING SYSTEM ; DCB ESTIMATION ; SATELLITE ; NETWORK ; VARIABILITY ; JAPAN
WOS研究方向	Astronomy & Astrophysics ; Geology ; Meteorology & Atmospheric Sciences
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000428496900001
资助机构	National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research Program of China ; National Key Research Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research Program of China ; National Key Research Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research Program of China ; National Key Research Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research Program of China ; National Key Research Program of China
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/37088]
专题	中国科学院国家天文台
通讯作者	Li, Qi
作者单位	1.Univ Chinese Acad Sci, Beijing, Peoples R China 2.Chinese Acad Sci, Natl Astron Observ, 20A Datun Rd, Beijing 100012, Peoples R China
推荐引用方式 GB/T 7714	Li, Qi,Ma, Guanyi,Lu, Weijun,et al. A method of estimating GPS instrumental biases with a convolution algorithm[J]. ADVANCES IN SPACE RESEARCH,2018,61(6):1387-1397.
APA	Li, Qi.,Ma, Guanyi.,Lu, Weijun.,Wan, Qingtao.,Fan, Jiangtao.,...&Li, Changhua.(2018).A method of estimating GPS instrumental biases with a convolution algorithm.ADVANCES IN SPACE RESEARCH,61(6),1387-1397.
MLA	Li, Qi,et al."A method of estimating GPS instrumental biases with a convolution algorithm".ADVANCES IN SPACE RESEARCH 61.6(2018):1387-1397.