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Abstract
The concept of spectrogram performance evaluation which exploits information on phase of short-term Fourier transform (STFT) is presented. A spectrograph which is time-frequency analyzing tool, is compared to a filter bank that demultiplexes a signal. Local group delay (LGD) and channelized instantaneous frequency (CIF) is obtained for each filtered component signal. In presented solution the performance is evaluated using so-called length of weighted average of reassignment vectors (WARV length). Orthogonal components of each reassignment vector are calculated using above mentioned parameters.
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- Category:
- Articles
- Type:
- artykuły w czasopismach recenzowanych i innych wydawnictwach ciągłych
- Published in:
-
HYDROACOUSTICS
no. 14,
pages 23 - 28,
ISSN: 1642-1817 - Language:
- English
- Publication year:
- 2011
- Bibliographic description:
- Czarnecki K., Moszyński M., Chybicki A.: Using phase of short-term Fourier transform for evaluation of spectrogram performance// HYDROACOUSTICS. -Vol. 14., (2011), s.23-28
- Sources of funding:
-
- COST_FREE
- Verified by:
- Gdańsk University of Technology
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