Title :
Cramer-Rao lower bound for cascaded adaptive notch filtering
Author :
Chicharo, J.F. ; Ng, T.S.
Author_Institution :
University of Wollongong, Department of Electrical & Computer Engineering, Wollongong, Australia
Abstract :
A minimal parameter infinite-impulse-response (IIR) cascaded adaptive notch filter is presented for the estimation of a single sinusoid embedded in noise. The Cramer-Rao lower bound (CRLB) is derived for the suggested filter which takes into account both the sinusoid and noise components. This leads to a more precise performance evaluation of the filter.
Keywords :
digital filters; filtering and prediction theory; notch filters; parameter estimation; Cramer-Rao lower bound; IIR; cascaded adaptive notch filtering; digital filters; infinite-impulse-response; minimal parameter; noise components; single sinusoid;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19870503
