Question: Need help with my digital signal processing homework. using matlab i. Generate 5 seconds of a signal consisting of the sum of three unit amplitude

Need help with my digital signal processing homework. using matlab

i. Generate 5 seconds of a signal consisting of the sum of three unit amplitude sinusoids, sampled at 2KH. The signal frequencies are: f0=220Hz,fl=3600Hz and f2=1800Hz ii. Using the PWELCH function - using your choice of window function and size, show a plot of the signal spectrum - explain what you observe iii. Sketch an aliasing diagram for the signal and validate your observations in (ii) above

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