Title
A Method For Fine Resolution Frequency Estimation From Three DFT Samples
Abstract
The parameter estimation of a complex exponential waveform observed under white noise is typically tackled in two stages. In the first stage, a coarse frequency estimate is found by the application of an N-point DFT to the input of length N . In the second stage, a fine search around the peak determined in the first stage is conducted. The method proposed in this paper presents a simpler alternative. The method suggests a nonlinear relation involving three DFT samples already calculated in the first stage to produce a real valued, fine resolution frequency estimate. The estimator approaches Jacobsen's estimator for large N and presents a bias correction which is especially important for small and medium values of N .
Year
DOI
Venue
2011
10.1109/LSP.2011.2136378
IEEE Signal Process. Lett.
Keywords
Field
DocType
fine doppler estimation,coarse frequency estimation,fine resolution frequency estimation,frequency estimation,dft,waveform analysis,fine search,radar signal processing,discrete fourier transforms,jacobsen estimator,complex exponential waveform parameter estimation,white noise,signal resolution,n-point dft,signal to noise ratio,estimation
Fine resolution,Nonlinear system,Euler's formula,White noise,Artificial intelligence,Estimation theory,Pattern recognition,Waveform,Signal-to-noise ratio,Algorithm,Statistics,Mathematics,Estimator
Journal
Volume
Issue
ISSN
18
6
1070-9908
Citations 
PageRank 
References 
42
2.36
4
Authors
1
Name
Order
Citations
PageRank
Cagatay Candan18210.38