DocumentCode
1091200
Title
Uncertainties in adaptive maximum entropy frequency estimators
Author
Keeler, R. Jeffrey
Author_Institution
NOAA Wave Propagation Lab., Boulder, CO, USA
Volume
26
Issue
5
fYear
1978
fDate
10/1/1978 12:00:00 AM
Firstpage
469
Lastpage
471
Abstract
For a real sinusoid in white noise, the weight vector noise associated with an adaptive maximum entropy (AME) frequency estimator causes the spectrum peak to shift away from the input frequency. For a long adaptive filter, approximate expressions for this estimator´s peak value and frequency variance are derived. For low SNR, the probability of obtaining a spurious peak is evaluated.
Keywords
Adaptive filters; Approximation algorithms; Autocorrelation; Entropy; Frequency estimation; Least squares approximation; Random variables; Signal to noise ratio; Uncertainty; White noise;
fLanguage
English
Journal_Title
Acoustics, Speech and Signal Processing, IEEE Transactions on
Publisher
ieee
ISSN
0096-3518
Type
jour
DOI
10.1109/TASSP.1978.1163128
Filename
1163128
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