A New Weighted Multipoint Interpolated DFT Approach for High-Accuracy Amplitude Estimation

Author

Belega, Daniel ; Dallet, Dominique

Author_Institution

Fac. of Electron. & Telecommun., "Politeh." Univ. of Timisoara, Timisoara

fYear

2008

fDate

12-15 May 2008

Firstpage

200

Lastpage

205

Abstract

In this paper a weighted multipoint interpolated discrete Fourier transform (WMIpDFT) method for amplitude estimation is presented. This method uses the maximum side lobe decay windows. When the H-term maximum side lobe decay window (H ges 2) is used and for (2J + 1)-point interpolation (I les J les H - 1), the analytical formulas to estimate the amplitude of a multi-frequency signal component are derived. The performances of the proposed method have been analyzed by means of computer simulations for a multi- frequency signal without noise as well with quantization noise.

Keywords

amplitude estimation; discrete Fourier transforms; interpolation; signal processing; amplitude estimation; discrete Fourier transform; maximum side lobe decay windows; multi frequency signal estimation; weighted multipoint interpolated DFT; Amplitude estimation; Computer simulation; Discrete Fourier transforms; Frequency domain analysis; Instrumentation and measurement; Interpolation; Laboratories; Quantization; Sampling methods; Signal analysis; amplitude estimation; maximum side lobe decay window; weighted multipoint interpolated method;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement Technology Conference Proceedings, 2008. IMTC 2008. IEEE

Conference_Location

Victoria, BC

ISSN

1091-5281

Print_ISBN

978-1-4244-1540-3

Electronic_ISBN

1091-5281

Type

conf

DOI

10.1109/IMTC.2008.4547031

Filename

4547031