Title :
Instantaneous Frequency Estimation Using WVD and Local SVD
Author :
Luo Xianglong ; Gao Jinghuai
Author_Institution :
Sch. of Electron. & Inf. Eng., Xi´an Jiaotong Univ., Xi´an, China
Abstract :
Estimation of the instantaneous frequency (IF) of nonlinear FM signals with additive Gaussian noise is considered. An algorithm for the IF estimation is proposed based on Wigner-Ville distribution (WVD) maxima and local singular value decomposition (SVD).Simulation result shows that the proposed method is valid for nonlinear FM signals.
Keywords :
AWGN; Wigner distribution; frequency estimation; singular value decomposition; WVD; Wigner-Ville distribution; additive Gaussian noise; instantaneous frequency estimation; local SVD; local singular value decomposition; nonlinear FM signals; Additive noise; Chirp modulation; Filters; Frequency estimation; Frequency modulation; Gaussian noise; Matrix decomposition; Noise reduction; Singular value decomposition; Working environment noise;
Conference_Titel :
Image and Signal Processing, 2009. CISP '09. 2nd International Congress on
Conference_Location :
Tianjin
Print_ISBN :
978-1-4244-4129-7
Electronic_ISBN :
978-1-4244-4131-0
DOI :
10.1109/CISP.2009.5303685
