matlab:从复平面看幅频特性

matlab:从复平面看幅频特性 th = (0:127)/128*2*pi; x = cos(th); y = sin(th); f = abs(fft(ones(10,1),128)); stem3(x,y,f','d','fill') view([-65 30]) xlabel('Real') ylabel('Imaginary') zlabel('Amplitude') title('Magnitude Frequency Response') rotate3d on

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