The paper presents a first attempt to correct the time-frequency reassignment of a multicomponent signal having non separable individual components. In particular, the case of a 2-components signal has been investigated in depth. It has been proved that the integral (along frequencies) of the spectrogram is still a multicomponent signal with specific instantaneous frequencies. As a result, the spectrogram of this signal allows us to disentangle the frequencies and recover the missing information in the non separability region. Preliminary results show that the proposed method is able to correctly reassign the information in the interference region by separating the two individual components, with a very moderate computational effort.

On the time-frequency reassignment of interfering modes in multicomponent FM signals / Bruni, Vittoria; Tartaglione, Michela; Vitulano, Domenico. - (2018), pp. 722-726. ((Intervento presentato al convegno 2018 26th European Signal Processing Conference (EUSIPCO) tenutosi a Rome, Italy [10.23919/EUSIPCO.2018.8553498].

On the time-frequency reassignment of interfering modes in multicomponent FM signals

Vittoria Bruni
;
TARTAGLIONE, Michela;Domenico Vitulano
2018

Abstract

The paper presents a first attempt to correct the time-frequency reassignment of a multicomponent signal having non separable individual components. In particular, the case of a 2-components signal has been investigated in depth. It has been proved that the integral (along frequencies) of the spectrogram is still a multicomponent signal with specific instantaneous frequencies. As a result, the spectrogram of this signal allows us to disentangle the frequencies and recover the missing information in the non separability region. Preliminary results show that the proposed method is able to correctly reassign the information in the interference region by separating the two individual components, with a very moderate computational effort.
2018 26th European Signal Processing Conference (EUSIPCO)
Time-frequency reassignment; multicomponent signals; instantaneous frequency; spectrogram
04 Pubblicazione in atti di convegno::04b Atto di convegno in volume
On the time-frequency reassignment of interfering modes in multicomponent FM signals / Bruni, Vittoria; Tartaglione, Michela; Vitulano, Domenico. - (2018), pp. 722-726. ((Intervento presentato al convegno 2018 26th European Signal Processing Conference (EUSIPCO) tenutosi a Rome, Italy [10.23919/EUSIPCO.2018.8553498].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1208782
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