ON THE POSSIBILITY OF USING MUTUAL WIGNER-VILLE TRANSFORM TO STUDY MEDIUM DISPERSIVE PROPERTIES |
| 5 | |
| 2011 |
| scientific article | 621.391.828 | ||
| 104-108 | frequency modulation, spectral-time analysis, Wigner-Ville transform, dispersion, hydroacoustics, remote sensing |
| A method to study medium dispersive properties based on active remote sensing and spectral-time analysis (STA) is considered. In this method, a mutual Wigner-Ville transform (WVT) is applied to a signal passed through the medium being investigated and a reference signal which is matched to the received one. The use of WVT complex features in the STA procedure makes it possible to get a higher frequency-time resolution as compared with traditional STA methods. The results of a full-scale experiment (at sea) are presented which show the effectiveness of the proposed method in sonar signal processing. |
 |