全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

基于双频GPS观测的简化动力学最小二乘批处理精密定轨

DOI: 10.11728/cjss2014.04.460, PP. 460-467

Keywords: 低轨卫星精密定轨,消电离组合,简化动力学,最小二乘批处理,经验加速度,稀疏带状矩阵

Full-Text   Cite this paper   Add to My Lib

Abstract:

星载双频GPS载波相位和伪距观测量已成为低轨卫星获取精确三维位置和速度信息的主要方式.本文以非差消电离载波相位和伪距组合作为观测量,应用简化动力学最小二乘批处理方法进行地球低轨卫星的精密定轨,并给出完整定轨流程.采用逐段常量的经验加速度对动力学模型误差进行补偿,描述了经验加速度敏感矩阵及稀疏带状矩阵求逆的有效计算方法.利用GRACE-A卫星GPS观测数据对定轨位置精度进行分析,结果显示,三维位置定轨精度优于5cm,经验加速度在径向、切向和法向上的补偿水平不超过40nm·s-2,大气阻力系数和辐射光压系数的估计值符合物理实际,星载接收机钟差大致呈线性并具有短周期小波动.

References

[1]  Montenbruck O, Helleputte Van T, Kroes R, et al. Reduced dynamic orbit determination using GPS code and carrier measurements[J]. Aerosp. Sci. Tech., 2005, 9(3):261-271
[2]  Kroes R. Precise Relative Positioning of Formation Flying Spacecraft using GPS[D]. Delft: Delft University of Technology, 2006
[3]  Center for Space Research. GRACE Gravity Model[OL]. [2013-12-03]. ftp://ftp.csr.utexas.edu/pub/grav/
[4]  Montenbruck O, Gill E. Satellite Orbits: Models, Methods and Applications[M]. Heidelberg: Springer Verlag, 2000
[5]  Picone J M, Hedin A E, Drob D P, et al. NRL-MSISE-00 empirical model of the atmosphere: Statistical comparisons and scientific issues[J]. J. Geophys. Res., 2003, 107(A12):SIA15-1-16
[6]  Knocke P C, Ries J C, Tapley B D. Earth radiation pressure effects on satellites[C]//Proceedings of the AIAA/AAS Astrodynamics Conference. Minneapolis, Minnesota: AIAA,1988: 577-587
[7]  Swatschina P. Dynamic and Reduced-dynamic Precise Orbit Determination of Satellites in Low Earth Orbit[D]. Wien: Institute of Geodesy and Geophysics, 2009
[8]  Case K, Kruizinga G, Wu S C. GRACE Level 1B Data Products[R]. Pasadena, California: Jet Propulsion Laboratory, 2010
[9]  Center for Orbit Determination in Europe (CODE). High rate clocks and orbits [OL]. [2014-01-08]. ftp://ftp.unibe. ch/aiub/CODE/
[10]  University of Texas Center for Space Research. GRACE Product Specification Document v4.5[R]. Austin: University of Texas Center for Space Research, 2007
[11]  Xu Guochang. GPS Theory, Algorithms and Applications [M]. 2nd. German: Springer, 2003

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133