傅里叶变换 (Fourier Transform) 是一种数学函数，它将采样信号（波形）从其原始域（通常是时间或空间）分解为其组成的正弦波频率，反之亦然。 Fast Fourier Transform (FFT) 是一种离散傅里叶变换DFT的高效算法，称为FFT快速傅里叶变换。傅里叶变换是时域一频域变换 ...

Diffraction is a classic optical phenomenon accounting for the light propagation. The efficient calculation of diffraction is of significant value towards the real-time prediction of light fields. The ...

The Fast Fourier Transform (FFT) is an implementation of the Discrete Fourier Transform (DFT) using a divide-and-conquer approach. A DFT can transform any discrete signal, such as an image, to and ...