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Use Matlab

Problem 3: Fourier Transform of a square wave Create a time t vector of N-1024 samples, starting at 0s at a sampling frequency of 1000Hz Create a signal s composed of one square wave at a frequency of f -70Hz (matlab function square, s # square (2*pi*t), and represent the function in the time domain from 0 to 04s. Compute the fft of this signal s. Create a vector f representing the frequencies spanned by the results of this fft. Represent the spectrum (module of the Fourier transform) of s as a function of the frequeney f from OHz to Nyquist-Shannon Frequency. How can you interpret your result, starting by providing what is the Fourier transform of the rect function.

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