Abstract
摘要: 利用X 射线源实现航天器相对定位, 突破了X 射线脉冲星绝对定位中需要选取具有稳定周期脉冲星的限制, 通过周期脉冲信号及非周期时变信号互相关时差测量仿真试算, 得出信号变化幅度是影响时延测量精度的重要因素. 在分析测距和星历误差对相对定位精度影响的基础上, 利用脉冲星数据库中提供的脉冲星参数, 对同时观测3~6 颗脉冲星的相对定位精度进行了试算. 关键词: X 射线源 / 相对定位 / DOP / 互相关
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