论文标题
Ligo中低频环境噪声的表征方法
A characterization method for low-frequency environmental noise in LIGO
论文作者
论文摘要
我们提出了一种表征地面重力波观测器中噪声的方法，例如激光引力波观测站（Ligo）。该方法使用线性回归算法，例如最小绝对收缩和选择操作员（LASSO）来识别噪声源，并分析检测器输出与噪声证人传感器，以量化此类噪声的耦合。我们的方法可以在LIGO上使用当前可用的资源来实施，该资源避免了在Ligo站点进行额外的编码或直接实验。我们提出了两个示例，以验证和估计地面运动以低于10 Hz的频率与检测器输出中的噪声耦合。
We present a method to characterize the noise in ground-based gravitational-wave observatories such as the Laser Gravitational-Wave Observatory (LIGO). This method uses linear regression algorithms such as the least absolute shrinkage and selection operator (LASSO) to identify noise sources and analyzes the detector output versus noise witness sensors to quantify the coupling of such noise. Our method can be implemented with currently available resources at LIGO, which avoids extra coding or direct experimentation at the LIGO sites. We present two examples to validate and estimate the coupling of elevated ground motion at frequencies below 10 Hz with noise in the detector output.
