In this paper, we present nonlinear estimators of nonstationary and multicomponent signal attributes (parameters, properties) which are instantaneous frequency, spectral (or group) delay, and chirp-rate (also known as instantaneous frequency slope). We estimate all of these distributions in the time-frequency domain using both finite and infinite impulse response (FIR and IIR) narrow band filers for speech analysis. Then, we present few examples including a novel type of imaging joining energy and phase acceleration in a single picture. Finally, we provide an open-source project - ccROJ - Time-Frequency C++ Framework of which we are authors and that is used for computing the presented figures.
Authors
- mgr inż. Karol Abratkiewicz link open in new tab ,
- dr inż. Krzysztof Czarnecki link open in new tab ,
- Dominique Fourer,
- François Auger
Additional information
- DOI
- Digital Object Identifier link open in new tab 10.1109/sps.2017.8053673
- Category
- Aktywność konferencyjna
- Type
- materiały konferencyjne indeksowane w Web of Science
- Language
- angielski
- Publication year
- 2017
