Fourier Transform - 國立清華大學資訊工程學系 NTHU Department of Computer Science

Discrete Fourier Transform FFT and Its Applications FFTSHIFT Shift zero-frequency component to the center of spectrum. For vectors, FFTSHIFT(X) swaps the left and right halves of X. For matrices, FFTSHIFT(X) swaps the first and third quadrants and the sec

www.cs.nthu.edu.tw