CAJ | 학술논문

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.
침대편대항천기간상대도항적수요,제출료이용맥충성적맥충접수신식학정편대항천기간상대거리적방법.해방법이용편대항천기대동일맥충성적관측신식,장불동항천기접수적맥충성신호진행상관처리이획득항천기간상대거리.동시통과대맥충성빈보특정적분석,급출료상대거리고계적정도.결합실제적편대항천기계통적궤도신식진행료방진,결과표명,이용상관고계적방법가이완성항천기간적상대거리학정,위금후항천기편대비행적응용제공료신적기술지지.
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.