Title :
Improved methods for exponential parameter estimation in the presence of known poles and noise
Author :
Chen, Hua ; Van Huffel, Sabine ; Vandewalle, Joos
Author_Institution :
Dept. of Electr. Eng., Eindhoven Univ. of Technol., Netherlands
fDate :
5/1/1997 12:00:00 AM
Abstract :
By incorporating prior knowledge of known signal poles corresponding to some of the closely spaced sinusoids, Dowling et al. (see IEEE Trans. Antennas Propagat., vol.42, no.5, p.590-599, 1994) have proposed an LCTLS-FLP technique, which improves the performance of TLS-FLP. We present two better estimators that incorporate the same prior knowledge but clearly outperform LCTLS-FLP in resolution and parameter accuracy
Keywords :
least squares approximations; noise; parameter estimation; poles and zeros; prediction theory; signal resolution; spectral analysis; LCTLS-FLP; TLS-FLP; closely spaced sinusoids; exponential parameter estimation; forward linear prediction; linear constraints; noise; parameter accuracy; signal poles; signal resolution; spectral estimation techniques; total least squares; Cepstral analysis; Deconvolution; Entropy; Nuclear magnetic resonance; Parameter estimation; Radar signal processing; Signal processing; Signal processing algorithms; Signal reconstruction; Signal resolution;
Journal_Title :
Signal Processing, IEEE Transactions on
