WINDOWS AND INTERPOLATION ALGORITHMS TO IMPROVE ELECTRICAL MEASUREMENT ACCURACY
WINDOWS AND INTERPOLATION ALGORITHMS TO IMPROVE ELECTRICAL MEASUREMENT ACCURACY
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DOI：
10.1109/19.31004
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发表时间：
1989-08-01
影响因子：
5.6
通讯作者：
TROTTA, A
中科院分区：
文献类型：
--
作者：
ANDRIA, G;SAVINO, M;TROTTA, A
研究了一种基于 FFT 的测量技术，该技术可以轻松地用于准确确定失真信号的所有谐波和间谐波分量的频率、幅度和相位。检查合适的窗口和插值算法，以减少由于不同步的采样过程引起的频谱泄漏造成的不良影响。比较了关于在一组模拟信号上应用不同窗口的几个结果，以验证所提出的程序的能力。通过检查噪声的影响来研究加权函数的滤波特性。<>
An FFT-based measurement technique, which can be easily used to determine accurately the frequency, amplitude, and phase of all the harmonic and interharmonic components of a distorted signal, is examined. Suitable windows and interpolation algorithms are examined in order to reduce undesirable effects due to spectral leakage caused by a sampling process that is not synchronized. Several results concerning the application of different windows on a set of simulated signals are compared to verify the capability of the proposed procedure. The influence of the noise is examined to study the filtering properties of the weighting functions.<>