Given the time domain signal: x(t)-3 cos (0.5 t + r) + 1.5 cos (3mt– a) Find the discrete time sign

Given the time domain signal: x(t)-3 cos (0.5 t + r) + 1.5 cos (3mt– a) Find the discrete time signal for sampling frequency 2.5 Hz. What are the digital frequencies present? (Remember to put all digital frequencies into the principal range) b) Reconstruct the analog signal, assuming a sampling frequency of 2.5 Hz. c) Which elements of the original signal were aliased, if any? Using Excel or Matlab, plot the original signal, the sampled signal, and the reconstructed signal for the time interval t-0~10 seconds.

 

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