中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Polynomial regression calculation of the Earth's position based on millisecond pulsar timing

文献类型:期刊论文

作者Tian Feng1; Tang ZhengHong1; Yan QingZeng1; Yu Yong1
刊名RESEARCH IN ASTRONOMY AND ASTROPHYSICS
出版日期2012
卷号12期号:2页码:219
关键词PRECESSION-NUTATION MODEL EPHEMERIS PACKAGE TEMPO2 POLE autonomous positioning millisecond pulsar pulsar timing regression analysis
ISSN号1674-4527
英文摘要Prior to achieving high precision navigation of a spacecraft using X-ray observations, a pulsar rotation model must be built and analysis of the precise position of the Earth should be performed using ground pulsar timing observations. We can simulate time-of-arrival ground observation data close to actual observed values before using pulsar timing observation data. Considering the correlation between the Earth's position and its short arc section of an orbit, we use polynomial regression to build the correlation. Regression coefficients can be calculated using the least square method, and a coordinate component series can also be obtained; that is, we can calculate Earth's position in the Barycentric Celestial Reference System according to pulse arrival time data and a precise pulsar rotation model. In order to set appropriate parameters before the actual timing observations for Earth positioning, we can calculate the influence of the spatial distribution of pulsars on errors in the positioning result and the influence of error source variation on positioning by simulation. It is significant that the threshold values of the observation and systematic errors can be established before an actual observation occurs; namely, we can determine the observation mode with small errors and reject the observed data with big errors, thus improving the positioning result.
资助项目[National Natural Science Foundation of China] ; [National Science Foundation of Shanghai, China]
语种英语
源URL[http://ir.bao.ac.cn/handle/114a11/63117]  
专题中国科学院国家天文台
作者单位1.中国科学院国家天文台
2.中国科学院
推荐引用方式
GB/T 7714
Tian Feng,Tang ZhengHong,Yan QingZeng,et al. Polynomial regression calculation of the Earth's position based on millisecond pulsar timing[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2012,12(2):219.
APA Tian Feng,Tang ZhengHong,Yan QingZeng,&Yu Yong.(2012).Polynomial regression calculation of the Earth's position based on millisecond pulsar timing.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,12(2),219.
MLA Tian Feng,et al."Polynomial regression calculation of the Earth's position based on millisecond pulsar timing".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 12.2(2012):219.

入库方式: OAI收割

来源:国家天文台

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