arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2012.06484gr-qcastro-ph.IM
收藏

MICROSCOPE任务:数据分析原理

MICROSCOPE mission: Data analysis principle

Joel Bergé, Quentin Baghi, Emilie Hardy, Gilles Métris, Alain Robert, Manuel Rodrigues, Pierre Touboul, Ratana Chhun, Pierre-Yves Guidotti, Sandrine Pires, Serg… 展开作者

Joel Bergé, Quentin Baghi, Emilie Hardy, Gilles Métris, Alain Robert, Manuel Rodrigues, Pierre Touboul, Ratana Chhun, Pierre-Yves Guidotti, Sandrine Pires, Serge Reynaud, Laura Serron, Jean-Michel Travert

AI总结:

本文介绍MICROSCOPE任务用于检验弱等效原理的频域迭代最小二乘数据分析方法,并通过数值模拟证明其无偏性与误差估计的正确性,从而验证WEP测量结果的稳健性。

摘要:

在地球周围进行了两年的无拖曳飞行期间,MICROSCOPE执行了高灵敏度加速度测量,为弱等效原理(WEP)提供了迄今最好的约束。除了是一项技术挑战之外,该实验还需要专门的数据分析流程,以寻找可能被噪声淹没、并可能受到仪器缺陷、数据缺失和毛刺影响的潜在微弱信号。本文描述了我们为MICROSCOPE开发的频域迭代最小二乘技术。特别是,通过数值模拟,我们证明了我们的估计量是无偏的,并能给出正确的误差棒。因此,本文论证了MICROSCOPE给出的WEP测量结果的稳健性。

英文摘要:

After performing highly sensitive acceleration measurements during two years of drag-free flight around the Earth, MICROSCOPE provided the best constraint on the Weak Equivalence Principle (WEP) to date. Beside being a technological challenge, this experiment required a specialised data analysis pipeline to look for a potential small signal buried in the noise, possibly plagued by instrumental defects, missing data and glitches. This paper describes the frequency-domain iterative least-square technique that we developed for MICROSCOPE. In particular, using numerical simulations, we prove that our estimator is unbiased and provides correct error bars. This paper therefore justifies the robustness of the WEP measurements given by MICROSCOPE.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑