Analysis of plasma dynamics using the biorthogonal decomposition
Many experiments in plasma physics require the analysis of spatio-temporal signals. Standard techniques such as the Fourier transform do not readily apply and a different approach, based on the biorthogonal decomposition, is presented, which splits the signal into orthogonal spatial and temporal modes. Signals with apparently complex structures can be decomposed into a few coherent modes, which are often associated with different physical mechanisms. The method is applied to macroscopic plasma fluctuations as observed on the Tore Supra tokamak, using soft X-ray and magnetic measurements.
Bibliographic Reference: Report: EUR-CEA-FC-1499 EN (1993) 48 pp.
Availability: Available from CEA, Département de Recherches sur la Fusion Contrôlée, Saint-Paul-lez-Durance (FR)
Record Number: 199311387 / Last updated on: 1994-11-28
Original language: en
Available languages: en