Details

Autor(en) / Beteiligte

• Fotinea, S.-E.
• Dologlou, I.
• Hatzigeorgiu, N.
• Carayannis, G.

Titel

Spectral estimation based on the eigenanalysis of companion-like matrices

Ist Teil von

• 2000 IEEE International Conference on Acoustics, Speech, and Signal Processing. Proceedings (Cat. No.00CH37100), 2000, Vol.1, p.257-260 vol.1

Ort / Verlag

IEEE

Erscheinungsjahr

2000

Link zum Volltext

• Volltext

Quelle

IEEE Xplore (IEEE/IET Electronic Library - IEL)

Beschreibungen/Notizen

• This paper presents a new state-space method for spectral estimation based on a companion matrix technique in order to estimate frequency, damping factor, amplitude and phase of exponential sinusoids. The new method, called CSE (companion matrix based spectral estimation), is compared against a previously proposed method called HTLS which is based on the use of total least squares. The latter lies among the most promising methods in the field of spectroscopy where accuracy of parameter estimation is of utmost importance. Experiments performed on a simulated NMR signal prove CSE to be more robust in terms of failure rate, especially for low signal to noise ratio.