DocumentCode
1435706
Title
Fast frequency estimation and tracking using Lagrange interpolation
Author
Dooley, S.R. ; Nandi, A.K.
Author_Institution
Signal Process. Div., Strathclyde Univ., Glasgow, UK
Volume
34
Issue
20
fYear
1998
fDate
10/1/1998 12:00:00 AM
Firstpage
1908
Lastpage
1910
Abstract
A computationally efficient and accurate frequency estimation and tracking algorithm is proposed, based on the adaptive frequency estimator (AFE) of Etter and Hush. A Lagrange interpolator (a fractional delay filter) is used to estimate the gradient of the performance surface of the adaptation, which enables highly accurate estimation. The performance of the new algorithm is demonstrated in the context of tracking a chirp signal in noise
Keywords
frequency estimation; interpolation; signal processing; tracking; Lagrange interpolation; adaptive frequency estimator; chirp signal; fast frequency estimation; fractional delay filter; tracking algorithm;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19981346
Filename
722017
Link To Document