Title :
Uncertainty analysis of the normalized frequency estimation of a sine wave by three-point Interpolated DFT method
Author :
Belega, Daniel ; Stoiciu, Dan ; Dallet, Dominique
Author_Institution :
Fac. of Electron. & Telecommun., "Politeh." Univ. of Timisoara, Timisoara
Abstract :
The paper investigates the influence of the quantization noise on the normalized frequency estimation of a sine wave by three-point Interpolated Discrete Fourier Transform (IpDFT) method with maximum side lobe decay windows. The expression of the uncertainty of the normalized frequency is derived. Simulation results confirm the accuracy of the derived expression. Besides, the uncertainties of the normalized frequency estimations obtained by three-point IpDFT method and by IpDFT method with maximum side lobe decay windows are compared. From this comparison some important conclusions are drawn.
Keywords :
discrete Fourier transforms; frequency estimation; interpolation; measurement errors; measurement uncertainty; quantisation (signal); IpDFT method; maximum side lobe decay window; normalized frequency estimation; quantization noise; sine wave; systematic error; three-point interpolated DFT method; uncertainty analysis; Brain modeling; Discrete Fourier transforms; Frequency estimation; Frequency measurement; Interpolation; Laboratories; Measurement uncertainty; Noise measurement; Quantization; Sampling methods; maximum side lobe decay windows; normalized frequency estimation; three-point interpolated DFT method; uncertainty analysis;
Conference_Titel :
Advanced Methods for Uncertainty Estimation in Measurement, 2008. AMUEM 2008. IEEE International Workshop on
Conference_Location :
Trento
Print_ISBN :
978-1-4244-2236-4
Electronic_ISBN :
978-1-4244-2237-1
DOI :
10.1109/AMUEM.2008.4589940
