共 4 条
[1]
Precision ERS-2 orbit deter-mination combining multiple tracking techniques[J]. ZHANG Feipeng, HUANG Cheng, LIAO Xinhao & FENG ChugangUnited Center for Astro-geodynamics Research, Shanghai Astronomical Observatory, National Astronomical Observatories, Chinese Academy of Sciences, Shanghai 200030, China.Chinese Science Bulletin. 2001(20)
[3]
Marini J W. Radio Science . 1972
[4]
Astrophysical quantities. Allen, C.W. The Athlone Press . 1973