Title :
Spectral analysis using the QD algorithm
Author_Institution :
University of Oklahoma, Norman, OK
Abstract :
A spectral estimation technique based on the quotient-difference (QD) algorithm of Rutishouser is proposed. The model assumed is a sum of nonharmonically related damped exponentials. The frequencies and damping factors are found directly from the data avoiding the need for rooting a polynomial as required in the closely related Prony´ s Energy Spectral Density (ESD) technique.
Keywords :
Computer science; Damping; Energy resolution; Equations; Frequency estimation; Least squares approximation; Least squares methods; Polynomials; Signal resolution; Spectral analysis;
Conference_Titel :
Acoustics, Speech, and Signal Processing, IEEE International Conference on ICASSP '86.
DOI :
10.1109/ICASSP.1986.1168705
