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Abstract
A novel precise method of time-frequency analysis is presented. In the algorithm, a new energy distribution is estimated by simultaneously discard or displacement of the classical spec- trogram energy. A channelized instantaneous frequency and a local group delay are used in order to replacement in the same manner as formulated by Kodera et al. [1, 2]. Additionally, new representations: a channelized instantaneous bandwidth and a local group duration are used in order to remove some part of irrelevant energy. A newly obtained energy distribution called essential spectrogram is highly concentrated and signal mono-components are precisely localized in the time-frequency domain.
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- Category:
- Articles
- Type:
- artykuły w czasopismach recenzowanych i innych wydawnictwach ciągłych
- Published in:
-
HYDROACOUSTICS
no. 16,
pages 29 - 36,
ISSN: 1642-1817 - Language:
- English
- Publication year:
- 2013
- Bibliographic description:
- Czarnecki K.: A novel method of time-frequency analysis: an essential spectrogram// HYDROACOUSTICS. -Vol. 16., (2013), s.29-36
- Verified by:
- Gdańsk University of Technology
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