Identification of quasi-periodic nonlinear waveforms in turbulent plasmas

Shigeru Inagaki, Yudai Miwa, Tatsuya Kobayashi, Takuma Yamada, Yoshihiko Nagashima, Tomohiro Mitsuzono, Hiromitsu Fujino, Makoto Sasaki, Naohiro Kasuya, Maxime Lesur, Yusuke Kosuga, Akihide Fujisawa, Sanae I. Itoh, Kimitaka Itoh

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)


A new method is presented for identifying waveforms of fluctuations in turbulent plasmas. The method is based on heartbeat analysis in which the convolution of a waveform is obtained by employing the phase tracking method. Phase tracking is performed by correlating raw time-series data with a template waveform; the template is evaluated through iteration procedure. The method is applied to fluctuations in a PANTA plasma, and the nonlinear waveform and its distribution of periods are obtained.

Original languageEnglish
Article number1201016
JournalPlasma and Fusion Research
Publication statusPublished - 2014

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics


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