摘要
针对编队航天器间相对导航的需要,提出了利用脉冲星的脉冲接收信息确定编队航天器间相对距离的方法。该方法利用编队航天器对同一脉冲星的观测信息,将不同航天器接收的脉冲星信号进行相关处理而获得航天器间相对距离。同时通过对脉冲星频谱特征的分析,给出了相对距离估计的精度。结合实际的编队航天器系统的轨道信息进行了仿真,结果表明,利用相关估计的方法可以完成航天器间的相对距离确定,为今后航天器编队飞行的应用提供了新的技术支持。
To satisfy the relative navigation of formation flying spacecrafts,a novel method of interspacecraft ranging is presented based on the observations of pulsars.According to the method the interspacecraft range projected in the direction of pulsars can be directly determined by correlating the pulsar signals detected on different spacecrafts in a formation flying system.Meanwhile the accuracy of the method is derived based on the analysis of the celestial sources and their spectrums.Finally the method is evaluated using the realistic simulation of the orbit information of formation flying spacecrafts.The result verifies the feasibility of the proposed method and is effective in the application of the future formation flying system.
出处
《系统工程与电子技术》
EI
CSCD
北大核心
2010年第3期650-654,共5页
Systems Engineering and Electronics
基金
国家高技术研究发展计划(863计划)(2008AA8051602)
哈尔滨工业大学微小型航天器技术实验室开放基金(HIT.KLOF2009091)资助课题
关键词
脉冲星
相关估计
编队飞行
航天器间相对距离
pulsar
correlation estimation
formation flying
interspacecraft range
