Amplitude Estimation by a Multipoint Interpolated DFT Approach

被引：18

作者：

Belega, Daniel ^{[2
]}

Dallet, Dominique ^{[1
]}

机构：

[1] Univ Bordeaux 1, Elect Engn Sch Bordeaux ENSEIRB, Integrated Management Syst Lab, F-33405 Talence, France

[2] Politehn Univ Timisoara, Fac Elect & Telecommun, Timisoara 300223, Romania

来源：

IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT | 2009年 / 58卷 / 05期

关键词：

Discrete Fourier transform (DFT); error analysis; interpolation; parameter estimation; signal processing; MULTIFREQUENCY SIGNAL; ACCURACY; ALGORITHMS; WINDOWS;

D O I：

10.1109/TIM.2009.2012950

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

080906 [电磁信息功能材料与结构]; 082806 [农业信息与电气工程];

摘要：

This paper focuses on the amplitude estimation by a multipoint interpolated discrete Fourier transform (DFT) method. Accurate results are obtained using the weighted multipoint interpolated DFT (WMIpDFT) method with maximum sidelobe decay windows. In addition, using the WMIpDFT method with maximum sidelobe decay windows, it is mathematically proven that the systematic errors affecting the amplitude estimation decrease as the number of interpolation points and/or the window order increases. Computer simulations confirm the accuracy of the derived expressions. Moreover, the influence of white Gaussian noise on the amplitude estimations has been analyzed by means of computer simulations.

引用

页码：1316 / 1323

页数：8

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