摘要
针对"金星快车"(Venus Express,VEX)探测器大时延、快变化的轨迹特点,提出了一种基于侧音信号相频特性的自适应模型重构算法。该方法极大增强了参考模型精度恶化情况下算法的适应性与稳定性。基于"金星快车"DOR观测实验的数据分析,通过与欧洲航天局提供的事后高精度星历轨道对比,结果表明数据处理算法时延精度优于ns量级,时延率精度优于1ps/s量级。
In this paper, we present a new algorithm based on model reconstruction, which is still effective when spacecraft has long delay and fast movement. Performance of DOR tracking for Venus Express is analyzed. Combined with high accurate orbit information provided by ESA deep space station Cebreros and New Nocia, the accuracy of delay is in the order of lns and delay rate is in the order of lps/s.
出处
《航天器工程》
2014年第2期91-94,共4页
Spacecraft Engineering
基金
国家自然科学基金资助项目(11203003)
