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3) A discrete time signal is given by: x[n] = (0.7) cos(4n) u[n] a) i. Find X(2), the Discrete Time Fourier Transform (DTFT) of
3) A discrete time signal is given by: x[n] = (0.7)" cos(4n) u[n] a) i. Find X(2), the Discrete Time Fourier Transform (DTFT) of x[n] analytically. ii. (6 marks) Write a MATLAB program to plot the amplitude |X(2) and phase spectra ZX (2) against ,
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Principles of Communications Systems, Modulation and Noise
Authors: Rodger E. Ziemer, William H. Tranter
7th edition
978-1-118-0789, 1118078918, 978-8126556793
