http://repository.iitr.ac.in/handle/123456789/7549| Title: | Moving-Window DFT Based Frequency-Locked Loop for FM Demodulation |
| Authors: | Singh K.M. Sumathi, Parasuraman |
| Published in: | IEEE Communications Letters |
| Abstract: | A moving-window discrete Fourier transform (MWDFT) based frequency locked loop (FLL) is proposed for retrieving the message signal from sinusoidal frequency modulated signals. The spectra of MWDFT exhibits almost flat amplitude and phase responses when it is placed in a closed-loop with fixed sampling frequency. These flat characteristics for variation in input frequency is utilized for tracking frequency modulated carrier. The small leakage observed in terms of magnitude and phase errors of MWDFT is further corrected by adaptive sampling frequency control. The simulation and experimental investigations demonstrate the capability of proposed FLL in sinusoidal message signal retrieval with good metrics. © 2016 IEEE. |
| Citation: | IEEE Communications Letters (2016), 20(5): 898-901 |
| URI: | https://doi.org/10.1109/LCOMM.2016.2537342 http://repository.iitr.ac.in/handle/123456789/7549 |
| Issue Date: | 2016 |
| Publisher: | Institute of Electrical and Electronics Engineers Inc. |
| Keywords: | Frequency demodulation Frequency-locked loop Moving Window discrete Fourier transform |
| ISSN: | 10897798 |
| Author Scopus IDs: | 56672296300 56998549500 |
| Author Affiliations: | Singh, K.M., Department of Electrical Engineering, Indian Institute of Technology Roorkee, Roorkee, 247667, India Sumathi, P., Department of Electrical Engineering, Indian Institute of Technology Roorkee, Roorkee, 247667, India |
| Appears in Collections: | Journal Publications [EE] |
Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.