基于X射线脉冲星绝对定位中的整周模糊度改进算法研究

Study of Betterment Arithmetic of Ambiguity in Absolution Position Based on X-ray Pulsar

基于X射线脉冲星导航定位方法是一种全新的自主导航技术。该文给出了脉冲星绝对定位的基本原理,针对有关文章存在的疑问,提出了脉冲星导航绝对定位中整周模糊度改进算法,并对其进行了深入的分析和理论推导,通过仿真计算脉冲星整周模糊度和航天器的位置,得到了较理想的定位精度。这种新改进的整周模糊度算法为脉冲星绝对定位提供了新的思路。

The absolution navigation based on X-ray pulsar is an entirely new autonomous technology. This paper put forward the basic theory of absolution navigation based on pulsar,and proposed a bettered algorithm of integer cycle ambiguity in the method of absolution navigation. Then the algorithm was analyzed deeply and the theoretical derivation was made. Through the simulation solution of ambiguity and position of spacecraft,it can achieve ideal precision. This cycle ambiguity arithmetic provides a new avenue for absolution navigation based on X-ray pulsar.