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。
The decaying DC component in the sampling signal will bring errors to the full-wave Fourier algorithm, which is derived with periodic signal.
全波傅氏算法是基于周期信号推导出来的，当采样信号中含有衰减直流分量时，将会产生误差。
To shorten the time of calculating the full-wave Fourier algorithms and improve response time, it is necessary to use Fourier recursive algorithm.
为了缩短全波傅立叶算法的计算时间，提高响应速度，有必要采用递推实时算法。
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