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Demodulation of discrete multicomponent AM-FM signals using periodic algebraic separation and energy demodulation

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2 Author(s)
Santhanam, B. ; Sch. of ECE, Georgia Inst. of Technol., Atlanta, GA, USA ; Maragos, P.

Existing multicomponent AM-FM demodulation algorithms either assume spectrally distinct components or components separable via linear filtering and break down when the components overlap spectrally or if one of the components is stronger than the other. In this paper, we present a nonlinear algorithm for multicomponent AM-FM demodulation which avoids the above shortcomings and works well even for extremely small spectral separation of the components. The proposed algorithm separates the multicomponent demodulation problem into two tasks: periodicity-based algebraic separation of the components and then monocomponent demodulation via energy-based methods

Published in:

Acoustics, Speech, and Signal Processing, 1997. ICASSP-97., 1997 IEEE International Conference on  (Volume:3 )

Date of Conference:

21-24 Apr 1997