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Assignment 3 Solved for Communication Systems Engineering | ELEG 403, Assignments of Electrical and Electronics Engineering

University of Delaware (UD)Electrical and Electronics Engineering

Material Type: Assignment; Class: Communication Systems Engineering; Subject: Electrical Engineering; University: University of Delaware; Term: Unknown 1989;

Typology: Assignments

Pre 2010

Uploaded on 09/02/2009

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ELEG403 COMMUNICATIONS SYSTEMS ENGINEERING ASSIGNMENT #3 due Monday September 29 4. Haykin Problem P2.4 #16 2, Haykin Problem P2.7 #22 3. Consider the following modulator: The input x(t) = sinc*(1000t) is multiplied by a cosine with center frequency f, = 0.5 kHz and then passed through an ideal lowpass filter with bandwidth W = 0.5 kHz (amplitude = 1). a) Find X(f), the Fourier transform of x(t). b) Find 2(f), the Fourier transform of x(t)cos(2rf,t). ¢) Find ¥(f), the Fourier transform of the filter output. d) Find y(t). 4. Find the convolution of two time-scaled rectangles, rect(t/T,) and rect(t/T,), in terms of T, and T. for T, > T.