DocumentCode
2320023
Title
Estimation of Instantaneous Frequency and Instantaneous Bandwidth via Adaptive Signal Decomposition
Author
Ghofrani, S. ; McLernnon, D.C. ; Ayatollahi, A.
Author_Institution
Dept. of Electr. Eng., Islamic Azad Univ., Tehran
Volume
3
fYear
2006
fDate
14-19 May 2006
Abstract
In this work, we derive general formulae for the instantaneous frequency (IF) and instantaneous bandwidth (IB) according to matching pursuit (MP) signal decomposition, irrespective of the kind of dictionary used. We show that via MP decomposition, the IF is now exactly the weighted average IF of the decomposed signal and that it is also always real-valued. In addition, the IB is always positive for all dictionaries with Gaussian envelopes and arbitrary polynomial phase
Keywords
Gaussian processes; adaptive signal processing; bandwidth allocation; frequency estimation; polynomials; Gaussian envelopes; adaptive signal decomposition; arbitrary polynomial phase; instantaneous bandwidth estimation; instantaneous frequency estimation; matching pursuit; Bandwidth; Desktop publishing; Dictionaries; Frequency estimation; Matching pursuit algorithms; Polynomials; Signal analysis; Signal resolution; Tellurium; Time frequency analysis;
fLanguage
English
Publisher
ieee
Conference_Titel
Acoustics, Speech and Signal Processing, 2006. ICASSP 2006 Proceedings. 2006 IEEE International Conference on
Conference_Location
Toulouse
ISSN
1520-6149
Print_ISBN
1-4244-0469-X
Type
conf
DOI
10.1109/ICASSP.2006.1660696
Filename
1660696
Link To Document