Application of independent component analysis to the iKAGRA data

T. Akutsu, T. Akutsu, M. Ando, M. Ando, M. Ando, K. Arai, Y. Arai, S. Araki, A. Araya, N. Aritomi, H. Asada, H. Asada, Y. Aso, Y. Aso, S. Atsuta, K. Awai, S. Bae, Y. Bae, L. Baiotti, R. BajpaiM. A. Barton, K. Cannon, E. Capocasa, M. Chan, C. Chen, C. Chen, K. Chen, Y. Chen, H. Chu, Y. K. Chu, K. Craig, W. Creus, K. Doi, K. Eda, S. Eguchi, Y. Enomoto, R. Flaminio, R. Flaminio, Y. Fujii, M. K. Fujimoto, M. Fukunaga, M. Fukushima, T. Furuhata, G. Ge, A. Hagiwara, A. Hagiwara, S. Haino, K. Hasegawa, K. Hashino, H. Hayakawa, K. Hayama, Y. Himemoto, Y. Hiranuma, N. Hirata, S. Hirobayashi, E. Hirose, Z. Hong, B. H. Hsieh, G. Z. Huang, P. Huang, Y. Huang, B. Ikenoue, S. Imam, K. Inayoshi, Y. Inoue, K. Ioka, Y. Itoh, Y. Itoh, K. Izumi, K. Jung, P. Jung, T. Kaji, T. Kajita, M. Kakizaki, M. Kamiizumi, S. Kanbara, N. Kanda, N. Kanda, S. Kanemura, M. Kaneyama, G. Kang, J. Kasuya, Y. Kataoka, K. Kawaguchi, N. Kawai, S. Kawamura, T. Kawasaki, C. Kim, J. C. Kim, W. S. Kim, Y. M. Kim, N. Kimura, T. Kinugawa, S. Kirii, N. Kita, Y. Kitaoka, H. Kitazawa, Y. Kojima, K. Kokeyama, K. Komori, A. K.H. Kong, K. Kotake, C. Kozakai, R. Kozu, R. Kumar, J. Kume, J. Kume, C. Kuo, H. S. Kuo, S. Kuroyanagi, K. Kusayanagi, K. Kwak, H. K. Lee, H. M. Lee, H. M. Lee, H. W. Lee, R. Lee, M. Leonardi, C. Lin, C. Y. Lin, F. L. Lin, G. C. Liu, Y. Liu, L. Luo, E. Majorana, S. Mano, M. Marchio, T. Matsui, F. Matsushima, Y. Michimura, N. Mio, O. Miyakawa, A. Miyamoto, T. Miyamoto, Y. Miyazaki, K. Miyo, S. Miyoki, W. Morii, S. Morisaki, Y. Moriwaki, T. Morozumi, M. Musha, K. Nagano, S. Nagano, K. Nakamura, T. Nakamura, H. Nakano, M. Nakano, M. Nakano, K. Nakao, R. Nakashima, T. Narikawa, L. Naticchioni, R. Negishi, L. Nguyen Quynh, W. T. Ni, W. T. Ni, W. T. Ni, A. Nishizawa, Y. Obuchi, T. Ochi, W. Ogaki, J. J. Oh, S. H. Oh, M. Ohashi, N. Ohishi, M. Ohkawa, K. Okutomi, K. Oohara, C. P. Ooi, S. Oshino, K. Pan, H. Pang, J. Park, F. E.Peña Arellano, I. Pinto, N. Sago, M. Saijo, S. Saito, Y. Saito, K. Sakai, Y. Sakai, Y. Sakai, Y. Sakuno, M. Sasaki, Y. Sasaki, S. Sato, T. Sato, T. Sawada, T. Sekiguchi, Y. Sekiguchi, N. Seto, S. Shibagaki, M. Shibata, M. Shibata, R. Shimizu, T. Shimoda, K. Shimode, H. Shinkai, T. Shishido, A. Shoda, K. Somiya, E. J. Son, H. Sotani, A. Suemasa, R. Sugimoto, T. Suzuki, T. Suzuki, H. Tagoshi, H. Takahashi, R. Takahashi, A. Takamori, S. Takano, H. Takeda, M. Takeda, H. Tanaka, K. Tanaka, K. Tanaka, T. Tanaka, T. Tanaka, S. Tanioka, S. Tanioka, E. N.Tapia San Martin, D. Tatsumi, S. Telada, T. Tomaru, Y. Tomigami, T. Tomura, F. Travasso, F. Travasso, L. Trozzo, T. Tsang, K. Tsubono, S. Tsuchida, T. Tsuzuki, D. Tuyenbayev, N. Uchikata, T. Uchiyama, A. Ueda, T. Uehara, T. Uehara, S. Ueki, K. Ueno, G. Ueshima, F. Uraguchi, T. Ushiba, M. H.P.M. Van Putten, H. Vocca, S. Wada, T. Wakamatsu, J. Wang, C. Wu, H. Wu, S. Wu, W. R. Xu, T. Yamada, A. Yamamoto, K. Yamamoto, K. Yamamoto, S. Yamamoto, T. Yamamoto, K. Yokogawa, J. Yokoyama, J. Yokoyama, T. Yokozawa, T. H. Yoon, T. Yoshioka, H. Yuzurihara, S. Zeidler, Y. Zhao, Z. H. Zhu

Research output: Contribution to journalArticlepeer-review


We apply independent component analysis (ICA) to real data from a gravitational wave detector for the first time. Specifically, we use the iKAGRA data taken in April 2016, and calculate the correlations between the gravitational wave strain channel and 35 physical environmental channels. Using a couple of seismic channels which are found to be strongly correlated with the strain, we perform ICA. Injecting a sinusoidal continuous signal in the strain channel, we find that ICA recovers correct parameters with enhanced signal-to-noise ratio, which demonstrates the usefulness of this method. Among the two implementations of ICA used here, we find the correlation method yields the optimal results for the case of environmental noise acting on the strain channel linearly.

Original languageEnglish
Article number053F01
JournalProgress of Theoretical and Experimental Physics
Issue number5
Publication statusPublished - 2020 May 28

Bibliographical note

Funding Information:
This work was supported by MEXT, thre Japan Society for the Promotion of Science (JSPS) Leading-edge Research Infrastructure Program, JSPS Grant-in-Aid for Specially Promoted Research 26000005, JSPS Grant-in-Aid for Scientific Research on Innovative Areas 2905 nos. JP17H06358, JP17H06361, and JP17H06364, JSPS Core-to-Core Program A, Advanced Research Networks, JSPS Grant-in-Aid for Scientific Research (S) 17H06133, the joint research program of the Institute for Cosmic Ray Research, University of Tokyo in Japan, National Research Foundation (NRF) and Computing Infrastructure Project of KISTI-GSDC in Korea, Academia Sinica (AS),AS Grid Center (ASGC), and the Ministry of Science andTechnology (MoST) inTaiwan under grants including AS-CDA-105-M06, the LIGO project, and the Virgo project. This paper carries JGW Document Number JGW-P1910218. Jun’ya Kume is supported by a research program of the Leading Graduate Course for Frontiers of Mathematical Sciences and Physics (FMSP). This work was partially supported by JSPS KAKENHI Grant-in-Aid for Scientific Research No. 15H02082 (Jun’ichi Yokoyama, Yosuke Itoh, and Toyokazu Sekiguchi).

Publisher Copyright:
© 2020 The Author(s) 2020. Published by Oxford University Press on behalf of the Physical Society of Japan.

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)


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