Unique Positive FM-AM Decomposition of Signals

  • Authors:

  • Ramdas Kumaresan;Ashwin Rao

  • Affiliations:

  • Department of Electrical Engineering, University of Rhode Island, Kingston, RI-02881;Department of Electrical Engineering, University of Rhode Island, Kingston, RI-02881

  • Venue:
  • Multidimensional Systems and Signal Processing - Special issue on recent developments in time-frequency analysis
  • Year:
  • 1998

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Abstract

An analytic signal, observedover an interval of T seconds, is decomposed intoa Minimum Phase (AM) and an All-Phase (FM) signal. The former‘slog-envelope and phase form a Hilbert transform pair while thelatter has positive definite instantaneous frequency (IF). AnAM-FM demodulator algorithm to achieve the above decompositionis proposed.