吉林大学学报（信息科学版）2013，Vol.31Issue(3)：228-234,7.
卫星姿态对JASON-2卫星精密定轨影响分析
Effect Analysis of Attitude on Orbit Determination of JASON-2 Satellite
摘要
Abstract
Regarding to the difficulty of assessing the impact of attitude instability on the orbit,the simulation experiment has been designed to solve this problem,the attitude model of JASON-2 altimeter satellite is discussed,and the mathematical expression for effect of attitude variation on observational data is deduced.The simulation experiment results show that with the attitude instability increases gradually,orbit accuracy will accordingly drop rapidly.Another effect of attitude instability on the orbit accuracy embodies that attitude instability in different axis will have different impact on orbit accuracy.Therefore,to obtain high-accuracy orbit,the satellite attitude stability needs to meet certain requirement,especially for the coordinate axis with a bigger phase center bias.Taking JASON-2 for instance,the attitude variation should be smaller than 2° in this axis.JASON-2-based actual measured calculation shows that attitude variation is around 1 °,with an effect of 0.036 m on orbit accuracy.This simulation experiment has provided a feasible way for assessing the influence of attitude stability on accurate orbit for China HY-2 altimeter satellite.关键词
精度分析/姿态/相位中心/JASON-2/精密轨道确定Key words
accuracy analysis/ attitude/ phase center/ JASON-2/ precise orbit determination分类
信息技术与安全科学引用本文复制引用
盛传贞,甘卫军,赵春梅,陈为涛,孙保琪,梁诗明..卫星姿态对JASON-2卫星精密定轨影响分析[J].吉林大学学报（信息科学版）,2013,31(3):228-234,7.基金项目
国家自然科学基金资助项目(41174082 （）
41074012 （）
41074001) （）
