gusucode.com > ​数字信号处理，包括：各种现有信号及随机信号的输入，从文件读取数据的输入 > Digital Signal Matlab ex1/IFFT.m

    axes(handles.axes4);
Xaxis=str2num(get(handles.EditX,'String'));
Yaxis=str2num(get(handles.EditY,'String'));
t=[1:Xaxis];
global SignalTran;
Xk=SignalTran; %512
x=ifft(Xk); %512
%plot(x,y);
stem(t,x(t),'.k');
axis([1,Xaxis,-Yaxis,Yaxis]);
title('傅立叶反变换')