资源简介
MATLAB代码,能够实现短时傅里叶变换。可以直接用来处理数据。
代码片段和文件信息
function [Y F] = stft(X NFFT WINDOW NOVERLAP Fs)
% [Y F] = STFT(X NFFT WINDOW NOVERLAP Fs)
% Short-time Fourier Transform Analysis
%
% Y : stFT doamin output matrix (NFFT x L)
% F : real frequencies corresponding to each FFT points
% Fs : sampling freguency
% NFFT : # of FFT points
% WINDOW : window function
% NOVERLAP : # of overlaped samples
%
% by Taesu Kim 2003. 1. 26.
if nargin<5 Fs = 8000; end
WLEN = size(WINDOW1);
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