Noise subtraction from KAGRA O3GK data using Independent Component Analysis
Abstract
In April 2020, KAGRA conducted its first science observation in combination with the GEO~600 detector (O3GK) for two weeks. According to the noise budget estimation, suspension control noise in the low frequency band and acoustic noise in the middle frequency band are identified as the dominant contribution. In this study, we show that such noise can be reduced in offline data analysis by utilizing a method called Independent Component Analysis (ICA). Here the ICA model is extended from the one studied in iKAGRA data analysis by incorporating frequency dependence while linearity and stationarity of the couplings are still assumed. By using optimal witness sensors, those two dominant contributions are mitigated in the real observational data. We also analyze the stability of the transfer functions for whole two weeks data in order to investigate how the current subtraction method can be practically used in gravitational wave search.
Keywords
Cite
@article{arxiv.2206.05785,
title = {Noise subtraction from KAGRA O3GK data using Independent Component Analysis},
author = {KAGRA collaboration and H. Abe and T. Akutsu and M. Ando and A. Araya and N. Aritomi and H. Asada and Y. Aso and S. Bae and Y. Bae and R. Bajpai and K. Cannon and Z. Cao and E. Capocasa and M. Chan and C. Chen and D. Chen and K. Chen and Y. Chen and C-Y. Chiang and Y-K. Chu and S. Eguchi and M. Eisenmann and Y. Enomoto and R. Flaminio and H. K. Fong and Y. Fujii and Y. Fujikawa and Y. Fujimoto and I. Fukunaga and D. Gao and G. -G. Ge and S. Ha and I. P. W. Hadiputrawan and S. Haino and W. -B. Han and K. Hasegawa and K. Hattori and H. Hayakawa and K. Hayama and Y. Himemoto and N. Hirata and C. Hirose and T-C. Ho and B-H. Hsieh and H-F. Hsieh and C. Hsiung and H-Y. Huang and P. Huang and Y-C. Huang and Y. -J. Huang and D. C. Y. Hui and S. Ide and K. Inayoshi and Y. Inoue and K. Ito and Y. Itoh and C. Jeon and H. -B. Jin and k. Jung and P. Jung and K. Kaihotsu and T. Kajita and M. Kakizaki and M. Kamiizumi and N. Kanda and T. Kato and K. Kawaguchi and C. Kim and J. Kim and J. C. Kim and Y. -M. Kim and N. Kimura and T. Kiyota and Y. Kobayashi and K. Kohri and K. Kokeyama and A. K. H. Kong and N. Koyama and C. Kozakai and J. Kume and Y. Kuromiya and S. Kuroyanagi and K. Kwak and E. Lee and H. W. Lee and R. Lee and M. Leonardi and K. L. Li and P. Li and L. C. -C. Lin and C-Y. Lin and E. T. Lin and F-K. Lin and F-L. Lin and H. L. Lin and G. C. Liu and L. -W. Luo and M. Ma'arif and E. Majorana and Y. Michimura and N. Mio and O. Miyakawa and K. Miyo and S. Miyoki and Y. Mori and S. Morisaki and N. Morisue and Y. Moriwaki and K. Nagano and K. Nakamura and H. Nakano and M. Nakano and Y. Nakayama and T. Narikawa and L. Naticchioni and L. Nguyen Quynh and W. -T. Ni and T. Nishimoto and A. Nishizawa and S. Nozaki and Y. Obayashi and W. Ogaki and J. J. Oh and K. Oh and M. Ohashi and T. Ohashi and M. Ohkawa and H. Ohta and Y. Okutani and K. Oohara and S. Oshino and S. Otabe and K. -C. Pan and A. Parisi and J. Park and F. E. Peña Arellano and S. Saha and Y. Saito and K. Sakai and T. Sawada and Y. Sekiguchi and L. Shao and Y. Shikano and H. Shimizu and K. Shimode and H. Shinkai and T. Shishido and A. Shoda and K. Somiya and I. Song and R. Sugimoto and J. Suresh and T. Suzuki and T. Suzuki and T. Suzuki and H. Tagoshi and H. Takahashi and R. Takahashi and S. Takano and H. Takeda and M. Takeda and K. Tanaka and T. Tanaka and T. Tanaka and S. Tanioka and A. Taruya and T. Tomaru and T. Tomura and L. Trozzo and T. Tsang and J-S. Tsao and S. Tsuchida and T. Tsutsui and D. Tuyenbayev and N. Uchikata and T. Uchiyama and A. Ueda and T. Uehara and K. Ueno and G. Ueshima and T. Ushiba and M. H. P. M. van Putten and J. Wang and T. Washimi and C. Wu and H. Wu and T. Yamada and K. Yamamoto and T. Yamamoto and K. Yamashita and R. Yamazaki and Y. Yang and S. Yeh and J. Yokoyama and T. Yokozawa and T. Yoshioka and H. Yuzurihara and S. Zeidler and M. Zhan and H. Zhang and Y. Zhao and Z. -H. Zhu},
journal= {arXiv preprint arXiv:2206.05785},
year = {2022}
}
Comments
26 pages, 10 figures