UNIT 5: FOURIER REPRESENTATION FOR SIGNALS 2 – 1. Define the DTFT of a signal. Establish the relation between DTFT and Z transform of a signal. [Jan 14, 7marks] Solution: 2. Find the DTFT of the sequence x(n) = and determine magnitude and phase αnu(n) spectrum. [June 14, 8marks] Solution 27
UNIT 5: FOURIER REPRESENTATION FOR SIGNALS – 2 1. Define the DTFT of a signal. Establish the relation between DTFT and Z transform of a signal. [Jan 14, 7marks] Solution: 2. Find the DTFT of the sequence x(n) = αnu(n) and determine magnitude and phase spectrum. [June 14, 8marks] Solution 27
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