摘要
受观测设备限制以及脉冲星自行的影响,X射线脉冲星的星表位置存在一定误差,基于现有测量手段很难大幅度提高星表精度。建立了基于地球卫星测量脉冲星位置误差的模型,在考虑脉冲星位置误差自行影响基础上,采用CV模型,提出了一种新的脉冲星位置误差测量方法。仿真结果表明,该方法能够高精度的估计出X射线脉冲星的星表位置误差,可以满足高精度脉冲星导航的需求,研究结果对建立精确的X射线脉冲星星表具有一定理论参考价值。
Because of the restriction of observation equipments and the effect of proper motion, there are some errors of the X-ray pulsar ephemeris which are difficult to be improved by current measure means. The model of X-ray pulsar position error estimation with satellite was set up, with consideration of the effect of pulsar proper motion, a new estimation algorithm of the X-ray pulsar position error based on CV model was put forward. Simulation results show that： the pulsar position error can be estimated accurately in this new algorithm and estimation precision can meet the need of pulsars navigation, and the new algorithm is referable to improve the precision of pulsar ephemeris.
出处
《系统仿真学报》
CAS
CSCD
北大核心
2010年第11期2712-2714,2718,共4页
Journal of System Simulation
基金
国家自然科学基金(10973048)
空间智能控制技术国家级重点实验室基金(SIC07010202)
