A novel method of time-frequency analysis: an essential spectrogram

• Autorzy: Czarnecki K.
• Języki publikacji: EN

Abstrakty

EN

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 spectrogram 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.

• Wydawca: Polskie Towarzystwo Akustyczne. Oddział Gdański
• Czasopismo: Hydroacoustics
• Rocznik: 2013
• Tom: Vol. 16
• Strony: 29--34
• Opis fizyczny: Bibliogr. 11 poz., rys.

Twórcy

autor

Czarnecki K.

• Electronics, Telecommunications and Informatics, 11/12 Gabriela Narutowicza, 80-233 Gdansk-Wrzeszcz, Poland

Bibliografia

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