改进的傅立叶级数  improved Fourier series

多维傅立叶级数  multi-dimensional Fourier series

二重傅立叶级数  double fourier series

傅立叶[级数]展开  Fourier expansion

傅立叶级数  Fourier series; Fourier’s series; Forrier series; Fourier series methods; Fouries series; vibration; Fourier series model; fourie serial; series; Fourier

傅立叶级数法  Fourier series; Fourier expansion method

傅立叶级数及卷积  Fourier series and convolutions

傅立叶级数理论  Fourier series theory

傅立叶级数拟合法  fourier series fitting method

傅立叶级数与非周期交流电  fourier-expansion and aperiodic current

傅立叶级数展开  Fourier series expansion

快速傅立叶变换-傅立叶级数频谱细化  Fast Fourier Transform-Fourier Series spectral zooming

离散傅立叶级数之线性特性  linearity propety of discrete Fourier series

时变傅立叶级数  time-varying Fourier coefficients

变形分数傅立叶变换  Anamorphic fractional Fourier transform

不对称分数傅立叶变换  dissymmetrical fractional fourier transform

陈列合成之傅式级数展开法  Fourier series expansion syntheisis of array

分数傅立叶  Fractional Fourier transform

分数傅立叶变换  Fractional Fourier transform; the fractional Fourier transform; alvikite; accelerated speed; the fractional Fourier transform FrFT