DEMO_NSDGT Non-stationary Gabor transform demo This script sets up a non-stationary Gabor frame with the specified parameters, computes windows and corresponding canonical dual windows and a test signal, and plots the windows and the energy of the coefficients. Figure 1: Windows + dual windows This figure shows the window functions used and the corresponding canonical dual windows. Figure 2: Spectrogram (absolute value of coefficients in dB) This figure shows a (colour-coded) image of the nsdgt coefficient modulus.
Url: http://ltfat.github.io/doc/demos/demo_nsdgt.html
See also: nsdgt, insdgt, nsgabdual.
Package: ltfat