论文标题
识别重力波检测器中的多通道相干耦合和因果关系
Identifying multichannel coherent couplings and causal relationships in gravitational wave detectors
论文作者
论文摘要
引力波检测器是高级仪器的复杂而敏感的集合，不仅受到机械/电子系统的影响，而且还受周围环境的影响。因此，通过使用来自许多与此类设备和周围环境有关的辅助渠道的信息来分类和减轻噪音以检测引力波信号非常重要。这提高了信噪比，并减少了一致的大声事件中的错误警报。因此，必须确定复杂渠道之间的连贯关系。这项研究提出了一种使用相关系数的方法来识别相关通道之间（非）线性耦合的方法。我们表明该方法可以应用于重力波检测器中的实际问题，例如通过闪电中风，空气压缩机振动和由风效应引起的噪音的声音。
The gravitational-wave detector is a complex and sensitive collection of advanced instruments that are impacted not only by mechanical/electronics systems but also by the surrounding environment. Hence, it is of great importance to classify and mitigate noises to detect gravitational-wave signals by using information from many auxiliary channels related to such devices and surroundings. This improves the signal-to-noise ratio and reduces false alarms from coincident loud events. For this reason, it is essential for identifying coherent relationships between complex channels. This study presents a way of identifying (non-) linear couplings between associated channels by using the method of correlation coefficients. And we show that the method can be applied to practical problems in the gravitational-wave detector, such as noises by lightning strokes, air compressors vibrations, and noises caused by wind effects.
