脉冲星因其具有良好的周期性,成为了非常良好的天文导航信号源,经过多年的观测分析,大量脉冲星的基本观测量已经被精确测定,通过理论模型分析,脉冲到达时间可以作为导航滤波的基本观测量,能提供时间与空间位置信息,因此,脉冲星可以为近地轨道和深空探测提供导航信息,从而替代传统的GPS导航定位以及深空网导航。介绍了脉冲导航的发展历程、脉冲星导航基本原理以及脉冲星导航系统实现框架与应用,并对脉冲星导航系统的进一步发展的难点进行有效分析。

The pulsar is a good celestial navigation signal source because of its good periodicity. After years of observation and analysis, a lot of pulsar observation has been precisely measured. Through the theoretical model analysis, the pulse arrival time can be used as the basic concept of measurement navigation filter. It can provide time and space position information. Therefore, pulsars can provide navigation information for near earth and deep space exploration, instead of the traditional GPS navigation and deep space network navigation. The development process of the pulse, the basic principle of navigation, and the implementation of satellite navigation framework and its application is introduced in this paper. And the difficulties of further development of pulsar navigation system are effectively analyzed.