Q 2 : An audio signal given by 15 sin( 000 pi t)+20 sin(8000 pi t) amplitude modulated DSB-FC) a sinusoidal carrier wave 60 sin(100,000 ) a. Derive an expression for the modulated signal. b. Find the modulation index. c. Find the spectrum of the modulated signal. d. Sketch the spectrum of the modulated signal e. Which type of demodulation method you propose to reconstruct the audio at receiver. Why? Q 2 : A modulating signal is used to modulate a carrier signal(AM modulation). Let P T . P c ,P SB . P USB , P LSB and u are the total power, carrier power, side band power, upper side band power, lower side band power and modulation index respectively, Prove the following: a. P c =P T ( 2 2+m^ 2 ) b. P SB =P T ( m^ 2 2+m^ 2 ) c. P USB =P LSB = 1 2 ( m^ 2 2+m^ 2 )P T Q2: An audio signal given by 15 sin(4000rt) + 20 sin(8000nt) amplitude modulated(DSB-FC) a sinusoidalcarrier wave 60 sin(100,000nt)a. Derive an expression for the modulated signal.b. Find the modulation index.c. Find the spectrum of the modulated signal.d. Sketch the spectrum of the modulated signale. Which type of demodulation method you propose to reconstruct the audio at receiver. Why?Qz: A modulating signal is used to modulate a carrier signal(AM modulation). Let Pr , Pe, PsB. PusB, Pise and u are the totalpower, carrier power, side band power, upper side band power, lower side band power and modulation index respectively.Prove the following:a. Pc = Pr ()c. Pusa = Pisa = ) Prb. Psa = Pr%3!\2+m²(2+m22+m2)T

Answered: 2 : An audio signal given by 15 sin(…

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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Q 2 : An audio signal given by 15 sin( 000 pi t)+20 sin(8000 pi t) amplitude modulated DSB-FC) a sinusoidal carrier wave 60 sin(100,000 ) a. Derive an expression for the modulated signal. b. Find the modulation index. c. Find the spectrum of the modulated signal. d. Sketch the spectrum of the modulated signal e. Which type of demodulation method you propose to reconstruct the audio at receiver. Why? Q 2 : A modulating signal is used to modulate a carrier signal(AM modulation). Let P T . P c ,P SB . P USB , P LSB and u are the total power, carrier power, side band power, upper side band power, lower side band power and modulation index respectively, Prove the following: a. P c =P T ( 2 2+m^ 2 ) b. P SB =P T ( m^ 2 2+m^ 2 ) c. P USB =P LSB = 1 2 ( m^ 2 2+m^ 2 )P T

Q2: An audio signal given by 15 sin(4000rt) + 20 sin(8000nt) amplitude modulated(DSB-FC) a sinusoidal
carrier wave 60 sin(100,000nt)
a. Derive an expression for the modulated signal.
b. Find the modulation index.
c. Find the spectrum of the modulated signal.
d. Sketch the spectrum of the modulated signal
e. Which type of demodulation method you propose to reconstruct the audio at receiver. Why?
Qz: A modulating signal is used to modulate a carrier signal(AM modulation). Let Pr , Pe, PsB. PusB, Pise and u are the total
power, carrier power, side band power, upper side band power, lower side band power and modulation index respectively.
Prove the following:
a. Pc = Pr ()
c. Pusa = Pisa = ) Pr
b. Psa = Pr
%3!
\2+m²
(2+m2
2+m2)T

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