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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/17394
Title: Mono-component AM-FM signal decomposition using SRF-PLL
Authors: George A.K.
Sumathi, Parasuraman
Published in: Proceedings of International Conference on Communication and Signal Processing, ICCSP 2014
Abstract: An AM-FM signal decomposition method based on synchronous reference frame phase locked loop (SRF-PLL) is presented. This procedure estimates instantaneous amplitude (IA) and instantaneous frequency (IF) using second order generalized integrator (SOGI) and a PLL. Assuming if the synchronous reference frame is rotating at an angular velocity equivalent to the frequency of the input signal, then the IA can be obtained from the direct-axis component of the SRF, and IF from the PLL. Simulation results obtained from this method prove that SOGI with SRF PLL can successfully and accurately extract the frequency and amplitude information from the input signal for a certain range. The algorithm is tested for the sinusoidal model of AM-FM, synthetic and real speech signals. © 2014 IEEE.
Citation: Proceedings of International Conference on Communication and Signal Processing, ICCSP 2014, (2014), 298- 302
URI: https://doi.org/10.1109/ICCSP.2014.6949849
http://repository.iitr.ac.in/handle/123456789/17394
Issue Date: 2014
Publisher: Institute of Electrical and Electronics Engineers Inc.
Keywords: AM-FM decomposition
instantaneous amplitude
instantaneous frequency
quadrature signal generator
second order generalized integrator
synchronous reference frame
ISBN: 9.78148E+12
Author Scopus IDs: 57188974736
56998549500
Author Affiliations: George, A.K., Electrical Engineering Department, Indian Institute of Technology, Roorkee, 247667, India
Sumathi, P., Electrical Engineering Department, Indian Institute of Technology, Roorkee, 247667, India
Appears in Collections:Conference Publications [EE]

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