Q2) The system shown in Figure 1 is used for modulation an audio signal M(t). The output y(t) is the modulated version of the input m(t). m(t) LPF y(t) Fc= 15KHZ. Figure 1 2 cos(3000 nt) a. If the power of the message is 10 kW, what is the power of y(t)? b. Draw the spectrum of the modulated signal , y(t)? c. Suggest a method for detection m(t) from y(t) in details? d. What is the type of modulation does system correspond to (similar results)? e. Assume the Low Pass Filter is removed, what type of modulation does correspond to? State advantage and disadvantage of this new modulation scheme compared to the scrambler?

Q2) The system shown in Figure 1 is used for modulation an audio signal M(t). The output y(t) is the modulated version of the input m(t). m(t) LPF y(t) Fc= 15KHZ. Figure 1 2 cos(3000 nt) a. If the power of the message is 10 kW, what is the power of y(t)? b. Draw the spectrum of the modulated signal , y(t)? c. Suggest a method for detection m(t) from y(t) in details? d. What is the type of modulation does system correspond to (similar results)? e. Assume the Low Pass Filter is removed, what type of modulation does correspond to? State advantage and disadvantage of this new modulation scheme compared to the scrambler?

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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