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Wigner-Ville distribution and Gabor transform in Doppler ultrasound signal processing

Ghofrani, S ; Sharif University of Technology | 2003

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  1. Type of Document: Article
  2. Publisher: 2003
  3. Abstract:
  4. Time-frequency distributions have been used extensively for nonstationary signal analysis, they describe how the frequency content of a signal is changing in time. The Wigner-Ville distribution (WVD) is the best known. The draw back of WVD is cross-term artifacts. An alternative to the WVD is Gabor transform (GT), a signal decomposition method, which displays the time-frequency energy of a signal on a joint t-f plane without generating considerable cross-terms. In this paper the WVD and GT of ultrasound echo signals are computed analytically
  5. Keywords:
  6. Gabor transform and Doppler ultrasound signal ; Wigner-Ville distribution
  7. Source: Biomedical Sciences Instrumentation ; Volume 39 , 2003 , Pages 142-147 ; 00678856 (ISSN)
  8. URL: https://pubmed.ncbi.nlm.nih.gov/12724883