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DEMO_GABMULAPPR - Approximate a slowly time variant system by a Gabor multiplier

Description

This script construct a slowly time variant system and performs the best approximation by a Gabor multiplier with specified parameters (a and L see below). Then it shows the action of the slowly time variant system (A) as well as of the best approximation of (A) by a Gabor multiplier (B) on a sinusoids and an exponential sweep.

demo_gabmulappr_1.png

Spectrogram of signals

The figure shows the spectogram of the output of the two systems applied on a sinusoid (left) and an exponential sweep.