How to use fourier transform in simulink

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Group 1
Group 1 2016-12-27
评论： Group 1 2016-12-29
Hello, im new to simulink Im asked to find the magnitude spectrum of input X(w) and the output signal Y(w) on the same graph. If my input is a continuous square wave with magnitude -+1V and fundamental frequency 130 rad/s And its a question about designing a 3rd order low pass butterworth filter. how can i plot the magnitude spectrum in the frequency domain?

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Ahmed raafat
Ahmed raafat 2016-12-29
I remember i saw fft block before in simulink

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