Method for environmental noise estimation via injection tests for ground-based gravitational wave detectors. (arXiv:2012.09294v2 [gr-qc] UPDATED)
<a href="http://arxiv.org/find/gr-qc/1/au:+Washimi_T/0/1/0/all/0/1">T. Washimi</a>, <a href="http://arxiv.org/find/gr-qc/1/au:+Yokozawa_T/0/1/0/all/0/1">T. Yokozawa</a>, <a href="http://arxiv.org/find/gr-qc/1/au:+Tanaka_T/0/1/0/all/0/1">T. Tanaka</a>, <a href="http://arxiv.org/find/gr-qc/1/au:+Itoh_Y/0/1/0/all/0/1">Y. Itoh</a>, <a href="http://arxiv.org/find/gr-qc/1/au:+Kume_J/0/1/0/all/0/1">J. Kume</a>, <a href="http://arxiv.org/find/gr-qc/1/au:+Yokoyama_J/0/1/0/all/0/1">J. Yokoyama</a>

Environmental noise is one of the critical issues for the observation of
gravitational waves, but is difficult to predict in advance. Therefore, to
evaluate the adverse impact of environmental noise on the detector sensitivity,
understanding the detector response to the environmental noise in actual setup
is crucial, for both the observation and future upgrades. In this paper, we
introduce and verify a new method of PEM injection based on the
post-observation commissioning of KAGRA. This new method (response function
model) includes the frequency conversion and nonlinearity of power, which are
the effects that are not considered in the current model (coupling function
model) used in LIGO and Virgo. We also confirmed the validity of our method by
applying it to an environmental noise-enriched dataset and successfully
reproducing them.

Environmental noise is one of the critical issues for the observation of
gravitational waves, but is difficult to predict in advance. Therefore, to
evaluate the adverse impact of environmental noise on the detector sensitivity,
understanding the detector response to the environmental noise in actual setup
is crucial, for both the observation and future upgrades. In this paper, we
introduce and verify a new method of PEM injection based on the
post-observation commissioning of KAGRA. This new method (response function
model) includes the frequency conversion and nonlinearity of power, which are
the effects that are not considered in the current model (coupling function
model) used in LIGO and Virgo. We also confirmed the validity of our method by
applying it to an environmental noise-enriched dataset and successfully
reproducing them.

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