摘要
脉冲星位置误差是影响脉冲星导航精度的主要误差源之一。针对脉冲星位置误差的影响主要通过与航天器位置信息耦合作用的特点，提出了将脉冲星导航观测数据在GCRS（地球质心天球参考系）中进行处理的方法，以削弱脉冲星位置误差对脉冲星导航的影响。在此基础上，推导了基于GCRS的导航观测方程，并使用RXTE卫星实测数据进行分析，初步验证该方法的可行性。
The position error of pulsar is one of the main error sources that affect the accuracy of pulsar navigation. Considering the characteristics that the effect of pulsar position error mainly couples with the position of spacecraft, the paper proposes the method that the observation data in pulsar navigation are processed in the GCRS to weaken the influence of pulsar position error on pulsar navigation. Then, the timing equation of pulsar navigation based on GCRS is deduced, the measured data using RXTE are analyzed and the validity of this algorithm is verified.
出处
《测绘科学与工程》
2013年第3期21-26,共6页
Geomatics Science and Engineering
基金
国家自然科学基金资助项目（41004013,41174025,41204020）.
