Introduction to Matlab Via the Analysis of the Spectrum of a Sampled Signal – Signal Processing Assignment,
| University | National University of Ireland (NUI) |
| Subject | Signal processing |
Introduction to Matlab via the Analysis of the Spectrum of a Sampled Signal
Task 1: Comment on time-domain signals in Figure1 and their spectrum in Figure 2? Discuss the spectrum of the signal when ‘a’ increases.
Task 2: Does the sampling in the code above satisfy the sampling theorem? What do you except for the spectrum of the sampled signal?
Task 3: Explain the relationship among Figures 2-4.
Task 4: Discuss the DTFT of the truncated signal and the original infinite sampled signal. Increase N and make your comments.
Task 5: Use the fft command in Matlab to compute the DFT of the finite sequence and verify that it is indeed equal to ‘DFTofTruncatedSmapledSignal’ above.
Task 6: Comment on the figure resulting from the above code.
Task 7: Comment on each line of the above code and discuss the obtained figure.
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