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arXiv 1503.07476gr-qcastro-ph.IM
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LIGO数据中环境噪声的回归

Regression of Environmental Noise in LIGO Data

Vaibhav Tiwari, Marco Drago, Valery Frolov, Sergey Klimenko, Guenakh Mitselmakher, Valentin Necula, Giovanni Prodi, Virginia Re, Francesco Salemi, Gabriele Vedovato, Igor Yakushin

摘要:

我们解决的问题,噪声回归的引力波(GW)干涉仪的输出,从物理环境监测器(PEM)的数据。回归分析的目的是从PEM测量结果预测引力波通道中的环境噪声。最有前途的回归方法之一是基于Wiener-Kolmogorov滤波器的构造。利用这种方法,已经执行了来自LIGO GW通道的地震噪声消除。在所提出的方法的维纳Kolmogorov方法已被扩展,纳入银行的维纳滤波器在时间-频率域,多通道分析和调节方案,这大大提高了通用性的回归分析。我们还介绍了LIGO数据中双相干噪声回归的第一个结果。

英文摘要:

We address the problem of noise regression in the output of gravitational-wave (GW) interferometers, using data from the physical environmental monitors (PEM). The objective of the regression analysis is to predict environmental noise in the gravitational-wave channel from the PEM measurements. One of the most promising regression method is based on the construction of Wiener-Kolmogorov filters. Using this method, the seismic noise cancellation from the LIGO GW channel has already been performed. In the presented approach the Wiener-Kolmogorov method has been extended, incorporating banks of Wiener filters in the time-frequency domain, multi-channel analysis and regulation schemes, which greatly enhance the versatility of the regression analysis. Also we presents the first results on regression of the bi-coherent noise in the LIGO data.

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。

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