基于单基线干涉测量的GEO卫星轨道测定与验证  

Single-baseline-interferometry-based Orbit Measurement and Determination Test of GEO Satellite

作　　者：任天鹏[1,2] 曹建峰[1,2] 唐歌实[1,2] 戴一堂[3] 陈略[1,2] 孙靖[1,2] 韩松涛[1,2] 路伟涛[1,2] 王美[1,2] 

机构地区：[1]北京航天飞行控制中心,北京100094 [2]航天飞行动力学技术重点实验室,北京100094 [3]北京邮电大学,北京100876

出　　处：《遥测遥控》2016年第4期20-25,共6页Journal of Telemetry,Tracking and Command

基　　金：国家自然科学基金(61302016;61304233;11403001)

摘　　要：干涉测量具有被动式测量特点,对空间非合作目标轨道监测具有天然优势。利用5.5公里基线干涉测量系统,针对GEO卫星开展了差分干涉测量实验。引入群时延辅助的相时延处理技术,GEO卫星干涉测量噪声约9.4ps。基于"2小时标校-13小时跟踪-2小时标校"的长时差分观测模式,GEO卫星干涉测量误差约0.267ns,定轨解算星历与精密星历最大径向偏差为35.7公里。结果表明,单基线干涉测量可以收敛解算GEO卫星轨道,实现较高精度的GEO卫星轨道被动式监测。As a kind of passive measurement, the interferometry has a natural advantage to track a non-cooperative spatial target. Through applying a 5.5km-baseline interferometry system, a differential interferometry test is done on a GEO satellite. After introducing group-delay-aided phase delay, the measured noise of the interferometry delay is about 9.4ps（root mean square of the linear fitting residuals in each 300 seconds）. Following a differential observation as ＂2-hour-calibration- 13-hour-tracking-2-hour-calibration＂, the accuracy of the interferometry delay is about 0.267ns（rms）. The maximum difference between solved orbit and precise ephemeris is about 35.7km. Results show that the single-baseline interferometry can converge to the solution of GEO satellite orbit, which would bring a high-accuracy orbit even as passive monitoring.

关 键 词：单基线干涉测量 被动式测量 GEO卫星 轨道测量 轨道确定 

分 类 号：P228.4[天文地球—大地测量学与测量工程]