脉冲星角位置对脉冲模板的影响及其削弱策略

构建脉冲模板是X射线脉冲星导航的一项关键技术，其精度与脉冲星角位置精度密切相关。基于脉冲模板构建的基本原理，推导得到了脉冲星角位置误差对脉冲模板构建影响的系统误差的年化平均值以及任意弧段积分的解析表达式，分析了脉冲星角位置误差对脉冲模板构建的影响。在此基础上，给出了削弱脉冲星角位置误差影响的方法。通过理论推导和仿真分析，验证了误差削弱方法的有效性，可以为优化X射线脉冲星的观测任务以及X射线脉冲模板的构建提供理论支持。

Impact of pulsar angular position on pulse template and its compensation method

Recovering pulse template is one key technology of X-ray pulsar-based navigation system.Its precision is closely related to the pulsar angular position.First, this paper briefly introduced the theory of re-covering standard profile.Then, the impact of pulsar angular position error on pulse template was analyzed and its analytical formula of annual mean value and the integral for any arc segment were derived.Finally, we proposed a feasible way that can significantly decrease the impact of pulsar angular position error.These re-search conclusions and simulation analysis verify the effectiveness of error compensation method, which could provide reference for optimizing observation task of X-ray pulsars and recovering X-ray pulse template.