Homework Answers
advantages:
a. Transmit power is less.
b. Reciever complexity is low.
c. Transmit bandwidth is low.
disadvantages:
a. Transmit bandwith is high.
b. Transmit Bandwisth and Power are high.
c. Reciever is complex.
Add Answer to:
4.(30p) A message signal is consisting of voice signal and information code as shown in the...
4.(30p) A message signal is consisting of voice signal and information code as shown in the...
4.(30p) A message signal is consisting of voice signal and information code as shown in the figure. This signal modulates an AM carrier signal x(t) defined as x(t) = cos(2 * 11 * 50000 *t) Find and sketch the spectrum of the modulated signal for each AM modulation type below. Explain the advantages and disadvantages of each modulation type. a) DSB-SC b) DSB c) SSB Upper Side Band AMEA)! 2 1 2 5 -5 2-1 f (kHz)
The message signal m(t) = 2 cos 400t + 3 sin(800t + 22) modulates the carrier...
The message signal m(t) = 2 cos 400t + 3 sin(800t + 22) modulates the carrier signal e(t) A cos(700π) using DSB-SC (dual side band, suppressed carrier) modulations Find the time domain and frequency domain representation of the modulated signal and plot the spectrum (Fourier transform) of the modulated signal. What is power content of the modulated signal?
Problem 5 (bonus): Explain how vestigial side band (VSB) modulated signal can be generated. Show in...
Problem 5 (bonus): Explain how vestigial side band (VSB) modulated signal can be generated. Show in table the advantages and disadvantages of the VSB modulation in comparison with the other modulation formats such as the full AM, the DSB-SC nd the SSB modulations.
below is used to modulate a carrier to generate the AM signal yt) (Am()) cos(1000t) The periodic signal m() shown a) The power efficiency of the system is measured to be 1 () The type of AM modula...
below is used to modulate a carrier to generate the AM signal yt) (Am()) cos(1000t) The periodic signal m() shown a) The power efficiency of the system is measured to be 1 () The type of AM modulation, i.e. SSB, DSBSC, (i) The constant A. (ili) The modulation index 1/13. Determine DSB with carrier enit -3 b) An angle modulated signal is given by d(t-2 cos (2n1061+ sin 2 1000). Find i) The carrier frequency. ii) The baseband signal bandwidth....
Problem No. 1: Let us consider that a baseband message signal m(t)=4cos(2000xt) has to be transmitted...
Problem No. 1: Let us consider that a baseband message signal m(t)=4cos(2000xt) has to be transmitted from a location 'A' to its destination 'B' using a carrier signal given by c(t)=2cos(10000#t). The signal s() m(t)c(i) is the modulated signal which will be transmitted. Consider that the signal is transmitted through a noiseless channel and received at the receiver at location 'B' as the signal s(t). Based on this information, perform the following tasks. 1. Find, sketch and label the spectrum...
When the message signal m (t) =cos (2π fmt) and the carrier signal is c(t)=cos (2π fct) , fm<&...
When the message signal m (t) =cos (2π fmt) and the
carrier signal is c(t)=cos (2π fct) ,
fm<< fc,
The modulated DSB-SC signal
SDSB-SC=m(t)cos(2πfct) is generated, and only
the upper sideband
To generate and transmit the SSB signal. As shown in the figure
below, the receiver is a local oscillator
cosine signal to the received signal and passes it through a
low-pass filter. Answer the following questions.
(a) Draw the waveform of DSB-SC modulated signal
SDSB-SC(t）
(b)Find the result...
In a DSB-SC amplitude modulation system, the message signal is m(t)=e^(-3t)*u(t-2) and the carrier signal is...
In a DSB-SC amplitude modulation system, the message signal is m(t)=e^(-3t)*u(t-2) and the carrier signal is ???( 2000??). Find the Fourier transform of the modulated signal.
()=< a) Consider the case where a modulating tone v, a cos(2ft) is used in a...
()=< a) Consider the case where a modulating tone v, a cos(2ft) is used in a Double Side Band m Amplitude Modulation (DSC-AM) scheme whose varying with time carrier amplitude is [K+a cos(2ft Provide the equation of the modulated carrier signal v (t and then derive from that an expression that shows the spectral components of v (t). Furthermore provide the phasor representation of DSB-AM. Now consider the case of Double Side Band Suppressed carrier AM and provide both the...
3(a) A complex signal given by the expression cos (9t x 103t) Vm(t) %3D 0.5cos(Зл х 103t) + сos(8т х 103t) + is used to...
3(a) A complex signal given by the expression cos (9t x 103t) Vm(t) %3D 0.5cos(Зл х 103t) + сos(8т х 103t) + is used to amplitude modulate a carrier signal, Vc(t) = 3cos(2n shown in Figure 3(a) 105t) as X Vm(t) 0.5cos(3t x 103t) cos(8T x 103t) AM Modulator AM Signal cos(9t x 10t) Vc(t) 3cos(2n x 105t) Figure 3(a) The AM signal in Question 3(a) is developed across 2.2 kn load resistance The modulated carrier in Question 3(a) is...
Please write clearly Expert Q&A Done 6. (A) What is an amplitude modulation (AM)? [) A...
Please write clearly
Expert Q&A Done 6. (A) What is an amplitude modulation (AM)? [) A baseband message signal mt) is shown below. b shows the frequency spectrum of mýtj. A carrier signal cost was used in DSB-SC AM moduition of m/t). Describe how the modulated signal can be created (is) Draw the frequency spectrum of modulated signal. (iv) Describe how the message signal demodulated and recovered at the receiving side. (4 5 20 points)
4.(30p) A message signal is consisting of voice signal and information code as shown in the figure. This signal modulates an AM carrier signal x(t) defined as x(t) = cos(2 * 11 * 50000 *t) Find and sketch the spectrum of the modulated signal for each AM modulation type below. Explain the advantages and disadvantages of each modulation type. a) DSB-SC b) DSB c) SSB Upper Side Band AMEA)! 2 1 2 5 -5 2-1 f (kHz)
The message signal m(t) = 2 cos 400t + 3 sin(800t + 22) modulates the carrier signal e(t) A cos(700π) using DSB-SC (dual side band, suppressed carrier) modulations Find the time domain and frequency domain representation of the modulated signal and plot the spectrum (Fourier transform) of the modulated signal. What is power content of the modulated signal?
Problem 5 (bonus): Explain how vestigial side band (VSB) modulated signal can be generated. Show in table the advantages and disadvantages of the VSB modulation in comparison with the other modulation formats such as the full AM, the DSB-SC nd the SSB modulations.
below is used to modulate a carrier to generate the AM signal yt) (Am()) cos(1000t) The periodic signal m() shown a) The power efficiency of the system is measured to be 1 () The type of AM modulation, i.e. SSB, DSBSC, (i) The constant A. (ili) The modulation index 1/13. Determine DSB with carrier enit -3 b) An angle modulated signal is given by d(t-2 cos (2n1061+ sin 2 1000). Find i) The carrier frequency. ii) The baseband signal bandwidth....
Problem No. 1: Let us consider that a baseband message signal m(t)=4cos(2000xt) has to be transmitted from a location 'A' to its destination 'B' using a carrier signal given by c(t)=2cos(10000#t). The signal s() m(t)c(i) is the modulated signal which will be transmitted. Consider that the signal is transmitted through a noiseless channel and received at the receiver at location 'B' as the signal s(t). Based on this information, perform the following tasks. 1. Find, sketch and label the spectrum...
When the message signal m (t) =cos (2π fmt) and the
carrier signal is c(t)=cos (2π fct) ,
fm<< fc,
The modulated DSB-SC signal
SDSB-SC=m(t)cos(2πfct) is generated, and only
the upper sideband
To generate and transmit the SSB signal. As shown in the figure
below, the receiver is a local oscillator
cosine signal to the received signal and passes it through a
low-pass filter. Answer the following questions.
(a) Draw the waveform of DSB-SC modulated signal
SDSB-SC(t）
(b)Find the result...
()=< a) Consider the case where a modulating tone v, a cos(2ft) is used in a Double Side Band m Amplitude Modulation (DSC-AM) scheme whose varying with time carrier amplitude is [K+a cos(2ft Provide the equation of the modulated carrier signal v (t and then derive from that an expression that shows the spectral components of v (t). Furthermore provide the phasor representation of DSB-AM. Now consider the case of Double Side Band Suppressed carrier AM and provide both the...
3(a) A complex signal given by the expression cos (9t x 103t) Vm(t) %3D 0.5cos(Зл х 103t) + сos(8т х 103t) + is used to amplitude modulate a carrier signal, Vc(t) = 3cos(2n shown in Figure 3(a) 105t) as X Vm(t) 0.5cos(3t x 103t) cos(8T x 103t) AM Modulator AM Signal cos(9t x 10t) Vc(t) 3cos(2n x 105t) Figure 3(a) The AM signal in Question 3(a) is developed across 2.2 kn load resistance The modulated carrier in Question 3(a) is...
Please write clearly
Expert Q&A Done 6. (A) What is an amplitude modulation (AM)? [) A baseband message signal mt) is shown below. b shows the frequency spectrum of mýtj. A carrier signal cost was used in DSB-SC AM moduition of m/t). Describe how the modulated signal can be created (is) Draw the frequency spectrum of modulated signal. (iv) Describe how the message signal demodulated and recovered at the receiving side. (4 5 20 points)
Most questions answered within 3 hours.
-
test the null hypothesis H0
H0 : In college, the average GPA of men is equal...
asked 41 seconds ago -
. Suppose that 36 items from a production line are measured. You
don’t know the actual...
asked 1 minute ago -
Dixie, a driver for Express Delivery Company, leaves the
truck's motor running in neutral and carelessly...
asked 4 seconds from now -
You are the captain of an old-timey warship with 10 cannons. It
takes 4 hits to...
asked 12 minutes ago -
Thanks to programming experience and language evolution, we have
a rather easy fix to this problem....
asked 21 minutes ago -
A random sample of 8 size AA batteries for toys yielded a mean
lifespan of 3.65...
asked 39 minutes ago -
What do Keynesian economists think will happen when GDP is low,
with regard to firms' expenses...
asked 30 minutes ago -
Q: An airport official wants to demonstrate that the P1 =
proportion of delayed flights after...
asked 38 minutes ago -
To calculate the adjusted present value, one will:
divide the project's cash flow by the risk-adjusted...
asked 41 minutes ago -
All in C please~
#1 Consider this program:
#include <stdio.h>
int main () { /* main...
asked 1 hour ago -
How is Lasik Method useful to measure the respiration rate of
plants?
asked 1 hour ago -
A laser emits a cylindrical beam of light 2.6 mm in diameter. If
the average power...
asked 57 minutes ago