基于天宫二号POLAR的脉冲星导航实验  

Test of pulsar navigation with POLAR on TG-2 space station

作　　者：郑世界[1,2] 葛明玉[1,2] 韩大炜[1,2] 王文彬[3] 陈勇[1,2] 卢方军[1,2] 鲍天威 柴军营[1,2,4,5] 董永伟[1,2] 冯旻子[1,2,4] 贺健健 黄跃[1,2] 孔敏南[1,2] 李汉成[1,2,4] 李陆[1,2] 李正恒[1,2,4] 刘江涛[1,2] 刘鑫[1,2] 师昊礼[1,2] 宋黎明[1,2] 孙建超[1,2] 王瑞杰[1,2] 王源浩[1,2,4] 文星[1,2] 吴伯冰[1,2] 肖华林[1,2] 熊少林[1,2] 许寒晖[1,2] 徐明[1,2] 张娟[1,2] 张来宇[1,2] 张力[1,2] 张晓峰[1,2] 张永杰[1,2] 赵一[1,2,4] 张双南[1,2,4] ZHENG ShiJie GE MingYu HAN DaWei WANG WenBin CHEN Yong LU FangJun BAO TianWei CHAI JunYing DONG YongWei FENG MingZil, HE JianJian HUANG Yue KONG MinNan LI HanCheng LI Lu LI ZhengHeng LIU JiangTao LIU Xin SHI HaoLi SONG LiMing SUN JianChao WANG RuiJie WANG YuanHao WEN Xing WU BoBingl, XIAO HuaLin XIONG ShaoLin XU HanHui XU Ming ZHANG Juan ZHANG LaiYul, ZHANG Li ZHANG XiaoFengl, ZHANG YongJie ZHAO Yi ZHANG ShuangNan(The Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China Key Laboratory of Particle Astrophysics, Chinese Academy of Sciences, Beijing 100049, China Technology and Engineering Center for Space Utilization, Chinese Academy of Sciences, Beo＇ing 100094, China University of Chinese Academy of Sciences, Beijing 100049, China Department of Electronics and Telecommunications, Politecnico di Torino, Torino 10129, Italy)

机构地区：[1]中国科学院高能物理研究所,北京100049 [2]中国科学院粒子天体物理重点实验室,北京100049 [3]中国科学院空间应用工程与技术中心,北京100094 [4]中国科学院大学,北京100049 [5]都灵理工大学电子与通讯学院

出　　处：《中国科学：物理学、力学、天文学》2017年第9期116-124,共9页Scientia Sinica Physica,Mechanica & Astronomica

基　　金：国家自然科学基金委员会-中国科学院天文联合基金(编号:U1631242);国家重点基础研究发展计划(编号:2014CB845800);国家重点研发计划项目(编号:2016YFA040080X);中国科学院空间科学战略性先导科技专项(编号:XDA04010300);国家自然科学基金(编号:11327303HE;11473028;11503028;11503027)资助

摘　　要：利用天宫二号上的伽玛暴偏振探测仪(POLAR)观测数据完成了X射线脉冲星导航的原理验证.处理并分析了POLAR的观测数据,建立了基于轨道动力学模型和脉冲星脉冲轮廓显著性分析的定轨算法,并利用蟹状星云脉冲星的实测数据开展了单脉冲星的定轨分析.结果表明,该方法能够实现对天宫二号轨道的定轨,利用POLAR一个月的在轨观测数据可得到定轨精度如下(99.7%置信度):轨道半长轴精度7.0 m,偏心率精度0.00026,轨道倾角精度0.023°,升交点赤经精度0.17°,近地点幅角及平近地点角精度0.043°.Pulsar navigation, which utilizes pulsar observations to determine the position or orbit of a spacecraft, has raised interests of many countries. Several projects, such as NICER, have been proposed. POLAR on-board the TG-2 space station of China has worked for about half year and its main task is to measure the polarization of the gamma-ray bursts. POLAR can also detect the photons from pulsars due to its large effective area （about 200cm2） and wide field of view （more than 2zt Sr）. In this work we report our first results testing pulsar navigation with POLAR observations. A new navigation algorithm has been used that combines the orbit dynamics and pulsar profile analysis. With 31-day-long observations of the Crab pulsar, the TG-2 orbit was determined successfully. The parameter values of the orbital elements are solved and the errors are estimated by bootstrap method. The errors with 99.7% confidence are： semi-major axis error of 7.0 m, eccentricity error of 0.00026, inclination error of 0.023 ° Right Ascension of the Ascending Node （RAAN） error of 0.17°, error for argument of periee of 0.042° and mean anomaly error of 0.042°.

关 键 词：脉冲星导航 X射线脉冲星 伽玛暴偏振探测仪 轨道动力学 

分 类 号：TN966[电子电信—信号与信息处理] V448.2[电子电信—信息与通信工程]