3.4 (a) Plot the spectrum of a PAM wave produced by the modulating signal m(t) Am cos(2nfmt) %3D assuming a modulation frequency f, = 0.25 Hz, sampling period T,=1 s, and pulse duration T = 0.45 s. (b) Using an ideal reconstruction filter, plot the spectrum of the filter output. Compare this result with the output that would be obtained if there were no aperture eneet

3.4 (a) Plot the spectrum of a PAM wave produced by the modulating signal m(t) Am cos(2nfmt) %3D assuming a modulation frequency f, = 0.25 Hz, sampling period T,=1 s, and pulse duration T = 0.45 s. (b) Using an ideal reconstruction filter, plot the spectrum of the filter output. Compare this result with the output that would be obtained if there were no aperture eneet

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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Concept explainers

Frequency Modulation

Frequency modulation is a method or process of encoding the data of a specific signal (analog or digital) by modulating the carrier wave frequency according to the frequency of the modulated signal. Modulated signals are nothing more than information or data that should be conveyed after being converted into electronic signals.

Question

H00
3.4 (a) Plot the spectrum of a PAM wave produced by the modulating signal
in a
m(t)
A, cos(2nfmt)
%3D
CM
assuming a modulation frequency fm
duration T 0.45 s.
(b) Using an ideal reconstruction filter, plot the spectrum of the filter output. Compae
this result with the output that would be obtained if there were no aperture eteet.
= 0.25 Hz, sampling period T, 1 s, and pulse

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