Improved time-frequency visualization of chirping mode signals in Tokamak plasmas using the Choi-Williams distribution
António C. A. Figueiredo, M. F. F. Nave, EFDA‐JET Contributors · IEEE Transactions on Plasma Science · 2005
The Choi-Williams distribution is used to create time-frequency images of chirping magnetohydrodynamic modes in the JET tokamak that have better resolution than plots based on the short-time Fourier transform spectrogram.