Title :
Estimation of the Multifrequency Signal Parameters by Interpolated DFT Method with Maximum Sidelobe Decay
Author :
Belega, Daniel ; Dallet, Dominique
Author_Institution :
"Politeh." Univ. of Timisoara, Timisoara
Abstract :
In this paper a comprehensive study concerning the estimation of a multifrequency signal parameters by the Interpolated Discrete Fourier Transform (IpDFT) method with maximum sidelobe decay windows is presented. Analytical formulas to estimate the parameters of a multifrequency signal by IpDFT method with H-term maximum sidelobe decay window (H ges 2) are derived. The analytical formula for amplitude estimate is more explicit and simple to implement than the one presented in the scientific literature. Also, an original demonstration of the formula used for the determination of the fractional part of the recorded cycles by IpDFT method is presented. Furthermore, simulations are used to compare the results obtained by means of the analytical formulas with the ones using the polynomial approximations employed in the IpDFT method with the maximum sidelobe decay windows.
Keywords :
discrete Fourier transforms; interpolation; parameter estimation; signal processing; H-term maximum sidelobe decay window; interpolated discrete Fourier transform; multifrequency signal parameter estimation; Character generation; Conferences; Data acquisition; Distributed information systems; Feedback; Galois fields; Information analysis; Information systems; Information technology; Symmetric matrices; Interpolated DFT method; Maximum sidelobe decay Multifrequency signal parameters estimation;
Conference_Titel :
Intelligent Data Acquisition and Advanced Computing Systems: Technology and Applications, 2007. IDAACS 2007. 4th IEEE Workshop on
Conference_Location :
Dortmund
Print_ISBN :
978-1-4244-1347-8
Electronic_ISBN :
978-1-4244-1348-5
DOI :
10.1109/IDAACS.2007.4488425
