Published October 2006
| Version v1
Journal article
On limitations of the spectrogram in the representation of the amplitude of nonstationary fusion plasma signals
- 1. Centro de Fusao Nuclear, Associacao Euratom-IST, Instituto Superior Tecnico, 1049-001 Lisbon (Portugal)
Description
The spectrogram capability to track the amplitude of signal components is discussed. A study using theoretical signal models shows that significant discrepancies may exist between the evolutions of the amplitude of a nonstationary signal component and of the magnitude of the corresponding spectrogram. To illustrate the practical consequences of this spectrogram shortcoming, the growth of magnetohydrodynamic modes observed in the JET tokamak is addressed
Additional details
Identifiers
- DOI
- 10.1063/1.2220002;
Publishing Information
- Journal Title
- Review of Scientific Instruments
- Journal Volume
- 77
- Journal Issue
- 10
- Journal Page Range
- p. 10F509
- ISSN
- 0034-6748
- CODEN
- RSINAK
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 38024333
- Subject category
- S70: PLASMA PHYSICS AND FUSION TECHNOLOGY; S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
- Descriptors DEI
- AMPLITUDES; FOURIER TRANSFORMATION; JET TOKAMAK; MAGNETOHYDRODYNAMICS; PARTICLE TRACKS; PLASMA; PLASMA CONFINEMENT; PLASMA INSTABILITY; SIGNALS
- Descriptors DEC
- CLOSED PLASMA DEVICES; CONFINEMENT; FLUID MECHANICS; HYDRODYNAMICS; INSTABILITY; INTEGRAL TRANSFORMATIONS; MECHANICS; THERMONUCLEAR DEVICES; TOKAMAK DEVICES; TRANSFORMATIONS
Optional Information
- Notes
- (c) 2006 American Institute of Physics
- Collaborations
- JET EFDA Contributors