Published June 2001 | Version v1
Journal article Metadata-only

Extraction of MHD signal using wavelet transform

Creators

  • 1. China Science and Technology Univ., Hefei (China). Dept. of Electrical Engineering
  • 2. Academia Sinica, Hefei (China). Inst. of Plasma Physics

Description

The Mirnov signal with interference is a nonstationary signal, from which the MHD signal is not effectively extracted using the Fourier transform. A method of wavelet transform for processing the disturbed Mirnov signal is presented. Analyses in theory and experimental results show that the interference is removed effectively and the MHD signal can be extracted from the disturbed Mirnov signal based-on the time-frequency analysis of wavelet transform

Additional details

Publishing Information

Journal Title
Nuclear Fusion and Plasma Physics
Journal Volume
21
Journal Issue
2
Journal Page Range
p. 73-79
ISSN
0254-6086

INIS

Country of Publication
China
Country of Input or Organization
China
INIS RN
33006331
Subject category
S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
Descriptors DEI
DATA ANALYSIS; ELECTRIC FILTERS; FOURIER TRANSFORMATION; FREQUENCY ANALYSIS; INTERFERENCE; MHD EQUILIBRIUM; PLASMA DISRUPTION; SIGNALS; TEARING INSTABILITY; TOKAMAK DEVICES
Descriptors DEC
CLOSED PLASMA DEVICES; EQUILIBRIUM; FILTERS; INSTABILITY; INTEGRAL TRANSFORMATIONS; PLASMA INSTABILITY; PLASMA MACROINSTABILITIES; THERMONUCLEAR DEVICES; TRANSFORMATIONS