中国科学院国家空间科学中心机构知识库
Advanced  
NSSC OpenIR  > 空间环境部  > 期刊论文
题名: 四种典型空间环境下LEO预报精度分析
其他题名: Accuracy Analysis of LEO Forecast under Four Typical Space Environment
作者: 刘卫; 王荣兰; 刘四清; 龚建村
作者部门: 空间环境部
关键词: 空间环境 ; GPS数据 ; 预报误差 ; 阻力系数
刊名: 载人航天
ISSN号: 1674-5825
出版日期: 2017
卷号: 23, 期号:2, 页码:177-184
收录类别: CSCD
中文摘要: 针对复杂变化的空间环境,依据地磁指数Ap和射电辐射流量指数F_(10.7)对空间环境简要分为4类。统计近4个太阳活动周各类型事件,发现扰动型(01、10和11型)事件比例有下降趋势。选取高度约350 km的载人航天轨道(天宫一号),以星载GPS数据作为测量数据和 参考轨道分析其在四种典型空间环境事件前后轨道预报精度和解算阻力系数C_d的变化情况。解算的C_d在00型和10型空间环境下没有明显变化,而在01型和11型空间环境下变化明显,表现为磁扰前1 d下降,磁扰当天及扰后1 d急剧增加。该方法对精细化分析预报误差具有一定的参考意义。
英文摘要: According to the geomagnetic indices and solar F_(10.7) index,the complicated space environment can be briefly divided into four typical types namely 00,01,10 and 11 type. The statistics show that the ratio of disturbance (01,10 and 11) events is on a downward trend in recent four solar cycles. With TianGong-1 onboard GPS data as the "measured data"and reference orbit", the prediction accuracy and the solved satellite drag coefficient C_d associated with the four typical space environments were analyzed. There was no significant change of the solved C_d under 00 and 10 type space environments,but under 01 and 11 type space environments, C_d showed a decline 1 d before the magnetic disturbance, and a sharp increase on the magnetic disturbance day and1 day after. This method has some reference value for the precise analysis of the prediction error or covariance evolution.
语种: 中文
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.nssc.ac.cn/handle/122/5962
Appears in Collections:空间环境部_期刊论文

Files in This Item:
File Name/ File Size Content Type Version Access License
2017232177-184.pdf(2395KB)期刊论文作者接受稿限制开放View 联系获取全文
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[刘卫]'s Articles
[王荣兰]'s Articles
[刘四清]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[刘卫]‘s Articles
[王荣兰]‘s Articles
[刘四清]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
文件名: 2017232177-184.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2017  中国科学院国家空间科学中心 - Feedback
Powered by CSpace