Unique Positive FM-AM Decomposition of Signals
Date of Original Version
An analytic signal, observed over an interval of T seconds, is decomposed into a Minimum Phase (AM) and an All-Phase (FM) signal. The former's log-envelope and phase form a Hilbert transform pair while the latter has positive definite instantaneous frequency (IF). An AM-FM demodulator algorithm to achieve the above decomposition is proposed.
Multidimensional Systems and Signal Processing
Kumaresan, Ramdas, and Ashwin Rao. "Unique Positive FM-AM Decomposition of Signals." Multidimensional Systems and Signal Processing 9, 4 (1998): 411-418. doi:10.1023/A:1008418709878.