@article{d80b55216a2a4bd4abfc4538c1ac86b0,
title = "Observation of nonlinear coupling between low frequency coherent modes and background turbulence in LMD-U",
abstract = "A solitary wave like fluctuating structure is observed in the Large Mirror Device-Upgrade (LMD-U) under relatively high neutral pressure conditions. Ion saturation current fluctuations are measured and Fourier and wavelet power spectra are calculated. Temporal behavior of fluctuation power and strength of nonlinear coupling of low frequency coherent mode and background turbulence in a specific frequency region is analyzed. This is achieved using wavelet spectral and bispectral analyses with conditional averaging.",
author = "Tatsuya Kobayashi and Shigeru Inagaki and Hiroyuki Arakawa and Stella Oldenb{\"u}rger and Makoto Sasaki and Yoshihiko Nagashima and Takuma Yamada and Satoru Sugita and Masatoshi Yagi and Naohiro Kasuya and Akihide Fujisawa and Itoh, {Sanae I.} and Kimitaka Itoh",
note = "Funding Information: This work was partly supported by a Grant-in-Aid for Scientific Research (S) from the Japan Society for the Promotion of Science (21224014) and the collaboration programs of RIAM at Kyushu University and the National Institute of Fusion Science (NIFS07KOAP017). Publisher Copyright: {\textcopyright} 2011 The Japan Society of Plasma Science and Nuclear Fusion Research.",
year = "2011",
doi = "10.1585/pfr.6.2401082",
language = "English",
volume = "6",
journal = "Plasma and Fusion Research",
issn = "1880-6821",
publisher = "The Japan Society of Plasma Science and Nuclear Fusion Research (JSPF)",
}