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DEMO_NSDGT - Non-stationary Gabor transform demo

Description

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.

demo_nsdgt_1.png

Windows + dual windows

This figure shows the window functions used and the corresponding canonical dual windows.
demo_nsdgt_2.png

Spectrogram (absolute value of coefficients in dB)

This figure shows a (colour-coded) image of the nsdgt coefficient modulus.