西安电子科技大学学报（自然科学版）2017，Vol.44Issue(1)：89-93,5.DOI:10.3969/j.issn.1001-2400.2017.01.016
脉冲星方向误差及空间分布对相对导航的影响
Influence of the pulsar direction error and geometry distribution on spacecraft relative navigation
摘要
Abstract
X‐ray pulsar navigation is one of the effective means to realize the spacecraft relative navigation . Based on the Kalman filtering measurement model of X‐ray pulsar based relative navigation , the effect of pulsar direction error and geometry distribution on navigation accuracy is researched . To model the pulsar direction error , a method of translating the model error into the measurement error is proposed . Simulation results indicate that the relative distance deviation caused by pulsars direction errors of 1 arcsec is up to 0.34% and that it increases linearly with the actuating direction error when the direction error is within 1000arcsec . The effect of the pulsar geometry distribution on navigation precision is remarkable .Selecting 4 pulsars from 8 for navigation , the discrepancy of navigation precision reaches 10.74% .关键词
相对导航/X射线脉冲星/导航精度/方向误差Key words
relative navigation/X-ray pulsar/navigation precision/direction error分类
天文与地球科学引用本文复制引用
薛梦凡,李小平,方海燕,孙海峰,沈利荣..脉冲星方向误差及空间分布对相对导航的影响[J].西安电子科技大学学报（自然科学版）,2017,44(1):89-93,5.基金项目
国家基础研究计划（973计划）资助项目（2014CB340205）；空间测控通信探索基金资助项目 （）
