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1. For the baseband signal given m(t) = 2sin 2000zt, and the carrier given by 4cos 10000nt, Find the expression and sketch the time domain modulated signal if the type of modulation performed is: (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-SC signal m(t)cos(10000nt). c) Identify the upper sideband (USB) and the lower sideband (LSB) spectra. d) Verify that the DSB-SC modulated signal can be demodulated by the demodulator given below: m(t)cos(10000xt) Low-pass Tller

1. For the baseband signal given m(t) = 2sin 2000zt, and the carrier given by 4cos 10000nt, Find the expression and sketch the time domain modulated signal if the type of modulation performed is: (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-SC signal m(t)cos(10000nt). c) Identify the upper sideband (USB) and the lower sideband (LSB) spectra. d) Verify that the DSB-SC modulated signal can be demodulated by the demodulator given below: m(t)cos(10000xt) Low-pass Tller

Introductory Circuit Analysis (13th Edition)
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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1. For the baseband signal given m(t) = 2sin 2000rt, and the carrier given by 4cos 10000nt, Find the expression and sketch the time domain modulated signal if the type of modulation performed is: (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-SC signal m(t)cos(10000nt). c) Identify the upper sideband (USB) and the lower sideband (LSB) spectra. d) Verify that the DSB-SC modulated signal can be demodulated by the demodulator given below: m(t)cos(10000zt) Low-pass Tiller cos1000t 3. A modulating signal m(t) is given by: m(t) = cos400nt cos700rt Determine the time domain expressions qusB(t) and PLSB(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.
Transcribed Image Text:1. For the baseband signal given m(t) = 2sin 2000rt, and the carrier given by 4cos 10000nt, Find the expression and sketch the time domain modulated signal if the type of modulation performed is: (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-SC signal m(t)cos(10000nt). c) Identify the upper sideband (USB) and the lower sideband (LSB) spectra. d) Verify that the DSB-SC modulated signal can be demodulated by the demodulator given below: m(t)cos(10000zt) Low-pass Tiller cos1000t 3. A modulating signal m(t) is given by: m(t) = cos400nt cos700rt Determine the time domain expressions qusB(t) and PLSB(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.
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