Instantaneous frequency estimation of FM signals by Psi_B-energy operator
Estimation de la fréquence instantanée des signaux FM par opérateur d'énergie Psi_B
TypeArticles dans des revues avec comité de lecture
Psi_B energy operator is an extension of the cross Teager-Kaiser energy operator which is an non-linear energy tracking operator to deal with complex signals and its usefulness for non-stationary signals analysis has been demonstrated. In this letter two new properties of Psi_B are established. The first property is the link between Psi_B and the dynamic signal which is a generalization of the Instantaneous Frequency (IF). The second property obtained for frequency modulated signals is a simple way to estimate the IF. These properties confirm the interest of Psi_B operator to track the non-stationary of a signal. Results of IF estimation in noisy environment of a non-linear FM signal are presented and comparison to Wigner-Ville distribution and Hilbert transform-based method is provided.
Files in this item
Showing items related by title, author, creator and subject.
DIOP, El Hadji; ALEXANDRE, Radjesvarane; BOUDRAA, Abdel-Ouahab (IEEE, 2010)The empirical mode decomposition is a powerful tool for signal processing. Because of its original algorithmic, recent works have contributed to its theoretical framework. Following these works, some mathematical contributions ...
BAY AHMED, Hadj Ahmed; KOMATY, Ali; DARE, Delphine; BOUDRAA, Abdel-Ouahab (2015)In this work a new denoising scheme based on the empirical mode decomposition associated with a frequency analysis is introduced. Compared to classical approaches where the extracted modes are thresholded in time domain, ...
Local frequency and envelope estimation by Teager-Kaiser energy operators in white-light scanning interferometry SALZENSTEIN, Fabien; MONTGOMERY, Paul; BOUDRAA, Abdel-Ouahab (Optical Society of America, 2014)In this work, a new method for surface extraction in white light scanning interferometry (WLSI) is introduced. The proposed extraction scheme is based on the Teager-Kaiser energy operator and its extended versions. This ...
KHALDI, Kais; BOUDRAA, Abdel-Ouahab (IEEE, 2013)In this paper a new adaptive audio watermarking algorithm based on Empirical Mode Decomposition (EMD) is introduced. The audio signal is divided into frames and each one is decomposed adaptively, by EMD, into intrinsic ...
KHALDI, Kais; TURKI, Monia; BOUDRAA, Abdel-Ouahab (World Scientific Publishing Company, 2010)In this paper a new method for voiced speech enhancement combining the Empirical Mode Decomposition (EMD) and the Adaptive Center Weighted Average (ACWA) filter is introduced. Noisy signal is decomposed adaptively into ...