The recursive Fourier algorithm is used in frequency measuring to dynamically track the frequency change and real-timely adjust the sampling rate for fixed sampling points.
采用递推傅氏算法测频,动态跟蹤频率变化,实时调整采样率进行定点采样;
The Fourier algorithm and its improved algorithm are emphasized.
重点分析了傅氏算法及其改进算法。
Mainly, FFT algorithm and full-wave Fourier algorithm are discussed. Calculation of active power and imaginary power is researched. Parameter selection of filtration and calculation of are attained.
主要就快速傅里叶变换算法、全波傅氏算法以及有功功率、无功功率的计算、滤波的参数选取、谐波的计算进行了讨论。
This paper studies several sorts of improved Fourier algorithm in recent years, particularly analyzes the method of filtering decaying DC component.
对近年来提出的几种改进傅氏算法进行分类研究,着重分析了其滤除衰减直流分量的方法。
Currently, a number of methods proposed for calculating the phasors of harmonic components of signals using the Fourier algorithm seem to make electrical engineers puzzled as to which to choose from.
目前有多种采用傅里叶算法求取信号谐波分量相量值的方法,使得工程技术人员无从选择。
The use of sampled signals, using full-cycle Fourier algorithm for correction calculated voltage and current phase, and thus calculate the power factor Angle.
利用采样后的信号,采用校正的全周波傅氏算法算出电压、电流的相位,从而算出功率因数角。
So it can take place of the traditional Fourier algorithm to calculate the coefficients of harmonics.
因而可以取代梯形算法来计算谐波系数。
Because of the limitation of theory, Fourier algorithm is unable to filtering the periodic component, and especially poor in restraining decaying DC component which is common in current malfunction.
由于傅氏算法原理上的局限,它不能完全滤除非周期分量,尤其对电流故障中常见的衰减直流分量的抑制能力很差。
It can describe the whole process of Fourier algorithm vividly and makes the physical concept of Fourier Transformation more clear.
它能形象地描述富氏算法的整个过程,使得富立叶变换的物理概念比较清晰。