Title :
Estimation of damped & delayed sinusoids: algorithm and Cramer-Rao bound
Author :
Boyer, Rémy ; Abed-Meraim, Karim
Author_Institution :
Dept. of Signal & Image Process., Ecole Nat. Superieure des Telecommun., Paris, France
Abstract :
We present an iterative Fourier-type algorithm which is introduced for DDS (damped and delayed sinusoid) parameter estimation using a sub-band processing approach. This algorithm is shown to improve on existing ones with respect to computational cost and estimation accuracy. Moreover, we derive the Cramer-Rao bound (CRB) expression for the DDS model and we perform a simulation-based performance analysis of a noisy fast time-varying synthetic signal and in the audio transient signal modeling context.
Keywords :
iterative methods; parameter estimation; signal processing; Cramer-Rao bound; Fourier-type algorithm; audio transient signal; computational cost; damped sinusoid parameter estimation; delayed sinusoid parameter estimation; estimation accuracy; iterative algorithm; noisy signal analysis; sub-band processing; time-varying synthetic signal analysis; Analytical models; Computational efficiency; Computational modeling; Context modeling; Delay estimation; Iterative algorithms; Iterative methods; Parameter estimation; Performance analysis; Transient analysis;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 2003. Proceedings. (ICASSP '03). 2003 IEEE International Conference on
Print_ISBN :
0-7803-7663-3
DOI :
10.1109/ICASSP.2003.1201637
