A new sine-fitting algorithm for accurate amplitude and phase measurements in two channel acquisition systems

被引：75

作者：

Ramos, Pedro M. ^{[1
]}

Serra, Antonio Cruz ^{[1
]}

机构：

[1] Univ Tecn Lisboa, Inst Super Tecn, Dept Elect & Comp Engn, Inst Telecomunicacoes,IST, P-1049001 Lisbon, Portugal

来源：

MEASUREMENT | 2008年 / 41卷 / 02期

关键词：

sine-fitting algorithms; amplitude and phase measurement; digital signal processing algorithms;

D O I：

10.1016/j.measurement.2006.03.011

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Sine-fitting algorithms are very accurate methods to estimate the parameters (amplitude, phase, frequency and DC component) of a digitized sinusoidal signal. In this paper, the standardized algorithms are improved, producing a new algorithm to estimate the sinewave parameters of two acquired sine signals sharing a common frequency. This new algorithm can be used for example in impedance measurements or in the accurate frequency characterization of linear systems by measuring its input and Output and varying the input signal frequency. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：135 / 143

页数：9

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