Title :
A Newton-based Ziskind-Wax alternating projection algorithm applied to spectral estimation
Author :
Biradar, L.S. ; Reddy, V.U.
Author_Institution :
Dept. of Electr. Commun. Eng., Indian Inst. of Sci., Bangalore, India
fDate :
3/1/1993 12:00:00 AM
Abstract :
A Newton-based alternating projection (AP) algorithm for estimating the parameters of exponential signals in noise is presented. Its performance is compared with that of modified forward-backward linear prediction/backward linear prediction (MFBLP/BLP) total least squares (TLS), and iterative quadratic maximum likelihood (IQML) methods using computer simulations. In the case of undamped sinusoids, the AP algorithm yielded a lower threshold SNR than the others. In the case of damped sinusoids, its threshold SNR was the same as that of TLS but was 1 dB lower than that of MFBLP and IQML
Keywords :
parameter estimation; spectral analysis; IQML; MFBLP/BLP; Newton-based alternating projection; SNR; TLS; Ziskind-Wax alternating projection algorithm; backward linear prediction; computer simulations; exponential signals; iterative quadratic maximum likelihood; modified forward-backward linear prediction; noise; parameter estimation; spectral estimation; total least squares; undamped sinusoids; Iterative algorithms; Least squares methods; Maximum likelihood estimation; Parameter estimation; Projection algorithms; Signal processing; Signal processing algorithms; Signal to noise ratio; Speech processing; Transfer functions;
Journal_Title :
Signal Processing, IEEE Transactions on
