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How to plot line spectrum in matlab ?

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Nguyen Trong Nhan
Nguyen Trong Nhan 2018-11-9
回答： Star Strider 2018-11-9
I would like to plot a spectrum (output of FFT) with a form like the provided image. How do I do it? Because the common plot in matlab is connecting of all point.

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回答（2 个）

madhan ravi
madhan ravi 2018-11-9
FFT
Star Strider
Star Strider 2018-11-9
Use the stem (link) function for the plot.
Example —
f = 0:0.1:3.5; % Create Frequency Vector
h = exp(-f) + 0.5*rand(size(f)); % Create Amplitude Vector
figure
stem(f, h, 'Marker','none')

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