Title :
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
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;
Conference_Titel :
Instrumentation and Measurement Technology Conference Proceedings, 2008. IMTC 2008. IEEE
Conference_Location :
Victoria, BC
Print_ISBN :
978-1-4244-1540-3
Electronic_ISBN :
1091-5281
DOI :
10.1109/IMTC.2008.4547031
