Title :
On the Cramer-Rao bound of finite-length cepstrum spectral estimators
Author :
Nadeu, C. ; Lleida, E.
Author_Institution :
Dept. Teoria del Senyal i Comunicacions, Univ. Politecnica de Catalunya, Barcelona, Spain
fDate :
7/5/1990 12:00:00 AM
Abstract :
Spectral estimators based on finite-length cepstrum modelling are useful in several applications. The Cramer-Rao lower bound of the asymptotic variance of their logarithmic spectral estimates can be obtained in explicit form. This does not depend on the specific underlying spectrum.
Keywords :
spectral analysis; speech recognition; Cramer-Rao lower bound; asymptotic variance; explicit form; finite-length cepstrum modelling; spectral estimates; spectral estimators;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19900641
