DocumentCode
1040945
Title
Robust FM demodulation of discrete-time signals using least squares differential ratio
Author
Epps, J. ; Ambikairajah, E. ; Thiruvaran, T.
Author_Institution
UNSW Asia, Singapore
Volume
43
Issue
13
fYear
2007
Firstpage
727
Lastpage
729
Abstract
A technique for the robust demodulation of discrete FM signals in the presence of additive noise is presented. Based upon least squares, the proposed technique is shown to improve the accuracy of instantaneous frequency estimation by 17 to 79% compared with the popular discrete energy separation (DESA), smooth DESA and Hilbert transform-based algorithms, e.g. noisy signals at low SNRs.
Keywords
Hilbert transforms; demodulation; frequency estimation; frequency modulation; least squares approximations; signal processing; Hilbert transform-based algorithms; additive noise; discrete FM signals; discrete energy separation; discrete-time signals; frequency estimation; least squares differential ratio; robust FM demodulation; robust demodulation; smooth DESA;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:20070969
Filename
4263105
Link To Document