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Abstract
Novel dynamic representations of a complex signal in the time-frequency domain including: a channelized instantaneous complex frequency (CICF), a complex local group delay (CLGD) and a channelized instantaneous chirp-rate (CICR) are introduced. The proposed approach is based on the use of the gradient of the short-time Fourier transform complex phase. An interpretation of the newly-introduced distributions especially of the CICR is demonstrated by a chirp-rate estimation of mono- and multicomponent FM signals in the time-frequency domain. The paper corresponds to a part of the dissertation.
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- Category:
- Articles
- Type:
- artykuły w czasopismach recenzowanych i innych wydawnictwach ciągłych
- Published in:
-
HYDROACOUSTICS
no. 17,
pages 29 - 36,
ISSN: 1642-1817 - Language:
- English
- Publication year:
- 2014
- Bibliographic description:
- Czarnecki K.: Chirp-rate estimation of FM signals in the time-frequency domain // HYDROACOUSTICS. -Vol. 17., (2014), s.29-36
- Verified by:
- Gdańsk University of Technology
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