付立叶红外光谱分析仪 Nicolet 5700 FTIR spectrometer
The commutate circuit and PWM control method were analysis by Fourier analysis.
本论文还对整流电路、PWM控制方法进行了付立叶分析。
参考来源 - 变频技术在电选机高压直流控制系统中的应用及研究·2,447,543篇论文数据，部分数据来源于NoteExpress
本文应用快速付立叶变换（FFT）计算分析了冲击发生器与分压器之间的相互作用对全波波头时间测量的影响。
This paper deals with the influence of impulse generating and measuring system on the measurement of lightning impulse front time by Fast Fourier Transformation (FFT).
建立在付立叶光学理论基础上的分析与实验结果是一致的。
The analysis based on theory of Fourier optics is in accordance with the results of experiment.
采用付立叶谐波分析的方法把气隙磁密分解为空间基波和一系列谐波，进而计算出气隙磁场波形特征系数。
The Fourier analysis method is applied to decompose the air-gap magnetic density into the basic wave and a series of harmonic and wave shape eigen coefficient of air-gap magnetic field are calculated.
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