空间科学学报2017，Vol.37Issue(6)：724-728,5.DOI:10.11728/cjss2017.06.724
掩星大气探测系统误差源分析
Error Source Analysis of Atmospheric Occultation Sounding System
摘要
Abstract
The error sources that influence the precision of atmospheric retrieval parameters obtained by the atmospheric occultation sounding system are studied.Each error which contributed to the total variance of the product was analyzed in detail,such as the Doppler observation error,the antenna phase center changing error,multipath error,the satellite centroid change error,the GNSS satellite clock drift error,satellite attitude variety error and the velocity error of precise orbit determination.The main errors that must be accounted carefully are the Doppler observation error,the multipath error,the antenna phase center changing error and the satellite attitude variety error.Especially if the distance between the satellite centroid and the occultation receiving antenna phase center is larger than 0.5 m,or the satellite attitude variety is larger than 0.01 (°)·s-1,the error will become unacceptable.According to the implementation feasibility,the total error allocation scheme can offer a reference for the system design of atmospheric occultation sounding system.关键词
掩星大气探测/卫星系统/误差分析Key words
Atmospheric occultation sounding/Satellite system/Error analysis分类
天文与地球科学引用本文复制引用
韩英,符养,白伟华,宫晓艳..掩星大气探测系统误差源分析[J].空间科学学报,2017,37(6):724-728,5.基金项目
国家自然科学基金项目(41204137,61403034)和国家重点研发计划项目(2016YFB0501503)共同资助 （41204137,61403034）
