Application oriented insights into the Gabor transform for acoustic signals processing

The paper presents results of analysis of certain quasi stationary and non stationary signals using Gabor transform and Gabor spectrogram. Initial results are based on the original programs realising Gabor transform, whereas the main part of the work — the comparative analysis of signals by Gabor spectrograms of higher orders and other time-frequency distributions was performed using the commercially available software package: Joint Time Frequency Analysis (JTFA) Toolkit from National Instruments. In most cases the experiments showed superiority of Gabor spectrogram over other methods mainly due to better time and frequency resolution and elimination of some of the cross terms inherent e.g. for Wigner-Ville or Choi-Williams Distributions.