Q1. Use MATLAB to plot each sum of complex sinusoids over the time period indicated.
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Q2. Use CTFS tables and properties to find the CTFS coefficients for the periodic signal given below (use the representation period TF indicated).
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Q3. A signal x(t) is described over one fundamental period by
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Find the CTFS coefficients of x(t) (using direct calculations), and those of its integral (using CTFS properties). Use the found CTFS coefficients to generate and plot the integral signal of x(t).
Q4. Find and plot (as a function of F) the magnitude of the response, y[n], to the periodic excitation x[n] = cos(2πFn) for the system described by
y[n]= x[n] + 0.9 y[n-1].