1. For the baseband signal given m(t) = 2sin 2000rt,and the carrier given by 4cos 10000nt,Find the expression and sketch the time domainmodulated signal if the type of modulation performedis:(a) Double side band with Carrier,(b) DSB-SC amplitude modulation.2. For the given message signal m(t) = cos1000zt,a) Sketch the spectrum of m(t)b) Find and sketch the frequency domain DSB-SCsignal m(t)cos(10000nt).c) Identify the upper sideband (USB) and the lowersideband (LSB) spectra.d) Verify that the DSB-SC modulated signal can bedemodulated by the demodulator given below:m(t)cos(10000zt)Low-passTillercos1000t3. A modulating signal m(t) is given by:m(t) = cos400nt cos700rtDetermine the time domain expressions qusB(t) andPLSB(t) if the carrier frequency o, =2000.Hint: If m(t) is a sinusoid, its Hilbert transform m,(t)is the sinusoid m(t) phase delayed by n/2 radians.

As per company guidelines we can solve only first question kindly post another question separately

Answered: 1. For the baseband signal given m(t) =…

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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Similar questions

A carrier is modulated simultaneously by two baseband signals . For one signal, the modulation index is 0.3 and the overall modulation index is 0.5. What will be the modulation index for the other baseband signal?
a) i) Consider the AM signal s(t) = 10cos(3900Trt) + 40cos(4000Tt) + 10cos(4100t). Calculate the modulating frequency and the modulation index.
Q2The modulating x(t)=2cos2000nt+cos4000nt is applied to AM modulator of carrier=2cos106 t. Write expression for modulation equation and Sketch the spectral of modulator output (Single Side Bandspectrum)
Q3. A baseband pulse position modulation (PPM) system uses signals s1(t) and s2(?) shown below to represent bits 1 and 0, respectively. Find two orthonormal basis functions for these waveforms and write s (t) and s2(t) in terms of them. Sketch the signal space diagram of the transmitted signals and suggest a correlation type receiver to extract the data symbols in AWGN channel. Assume that T, represents the bit interval, A is the signal amplitude, and E, is the signal energy per bit. (1) T/2 T12 T
Consider the magnetic field B(r) = axyê + by²ŷ. 1. What relation must connect the constants a and b? 2. What current density J produces this field?
iii) The efficiency ? of an AM signal is defined as the percentage of the total power carried by the sidebands, the formula for this is presented in the image below. The question is presented in the second image.
Q2The modulating x(t)=2cos2000rnt+cos4000nt is applied to AM modulator of carrier=2cos106 t. Write expression for modulation equation and Sketch the spectral of modulator output (Single Side Bandspectrum)
5-If the FM modulating signal is 300 kHz, and the carrier swing is 300 kHz. Therefore, the value and the type of the modulation index are, a) 0.5 NBFM b) 0.5 WBFM c) 1 NBFM d) 1 WBFM 6- IF the modulation index of FM signal is 2, the number of significant sidebands which greater than 1% of unmodulated carrier is? (Follow the table in the last page) a) 4 sidebands b) 6 sidebands c) 8 sidebands d) 10 sidebands 7- Let the carrier given 10cos(2nd) and the message signal be 5cos(10mt). Assume the message is used to frequency modulate the carrier with ky-10, the modulation index is, a) 1 b) 5 c) 10 d) 15
.
An analog baseband signal of maximum frequency component of 4 KHz is transmitted using a pcm system with 8 bit uniform quantizer. What will be the minimum Transmission bandwidth?

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