Let s(t) be a bandpass signal with reference carrier frequency f(0), and s(BB)(t). It turns out...
Let s(t) be a bandpass signal with reference carrier frequency f(0), and s(BB)(t). It turns out the baseband equivalent for a delayed signal s(t -t(0)) is not simply the delayed baseband signal s(BB)(t-t(0)). start with the formula that relates s(t) to s(BB)(t), and derive the correct formula for the baseband equivalent for s(t-t(0))
Homework Answers
Add Answer to:
Let s(t) be a bandpass signal with reference carrier frequency
f(0), and s(BB)(t). It turns out...
Given the in-phase/quadrature representation of a real bandpass signal s(t)- 2 cos π6,000t-sin π6,000, determine its eq...
Given the in-phase/quadrature representation of a real bandpass signal s(t)- 2 cos π6,000t-sin π6,000, determine its equivalent (i) complex baseband representation and (ii) envelop and phase representation.
Given the in-phase/quadrature representation of a real bandpass signal s(t)- 2 cos π6,000t-sin π6,000, determine its equivalent (i) complex baseband representation and (ii) envelop and phase representation.
2. Question: A baseband signal has a bandwidth B = 10 kHz. The carrier frequency is...
2. Question: A baseband signal has a bandwidth B = 10 kHz. The carrier frequency is ae = 2x 106 f the DSB-SC signal. T. Find the Nyquist frequency and Nyquist interval 0 of
Let a modulated signal be: s(t)=100cos(2100st) +100cos(2000xt) + 100cos(1900xt) where unmodulated carrier is c(t)=100cos(2000xt) where the...
Let a modulated signal be: s(t)=100cos(2100st) +100cos(2000xt) + 100cos(1900xt) where unmodulated carrier is c(t)=100cos(2000xt) where the carrier amplitude is Ac=100V and the carrier frequency is fc=1000Hz (6=2000m). a. Find the complex envelope g(t) for the modulated signal. b. Whaktype of modulation is involved? What is the modulating signal m(t)? c. Evaluate and draw the Power Spectral Density P.) of the modulated signal. d. Find the average (normalized) power P for this modulated signal. e. Evaluate the actual Peak Envelope Power...
FM spectrum: A message signal m(t) (shown below) is used to modulate a carrier with frequency (fc...
Solve using Matlab:
FM spectrum: A message signal m(t) (shown below) is used to modulate a carrier with frequency (fc) in a FM system with kr 90, find and plot the FM signal s(t) in both time and frequency domains. Use the value of fc-1000. m(t) (V) 3.5 t (ms) 250 [Note that m(t) is zero for t<0 and t>250 ms
FM spectrum: A message signal m(t) (shown below) is used to modulate a carrier with frequency (fc) in a...
5. Consider the following message signal: m(t) -2 .3 10 Assume that the carrier frequency is f ar...
5. Consider the following message signal: m(t) -2 .3 10 Assume that the carrier frequency is f are kf = 105, kp-25 respectively. 108 Hz, and frequency and phase deviation constants Find the maximum and minimum frequency deviation for FM, and sketch the FM wave for a duration of 103 seconds shown in the above figure (5 points). a. b. Find the maximum and minimum frequency deviation for PM, sketch the PM wave for a duration of 103 seconds shown...
In a coherent detection process, a sinusoidally modulated DSB-SC wave, s(t) = c(t)m(t) where the carrier...
In a coherent detection process, a sinusoidally modulated DSB-SC wave, s(t) = c(t)m(t) where the carrier wave is c(t) =Accos(2πfct) and the message signal is m(t) = Amcos(2πfmt), is applied to a product modulator using a locally generated sinusoid of Ac’ amplitude and is out of phase by φ with respect to the sinusoidal carrier used in the modulation. (a) Draw the block diagram of the coherent detection process and label the block diagram with the information provided above accordingly....
A Digital Signal Processing system is taking at its input the following analogue signal s(t); s(t)...
A Digital Signal Processing system is taking at its input the following analogue signal s(t); s(t) - 20+ 20 cos(24xt)cos(xt), Where time t is expressed in ms. Part 1 - Setting the sampling frequency: (11 Marks) As a start, the system comprises only a sampler and an ideal analogue reconstructor as follows: w(t) s(t) Sampler Analogue Reconstructor s,(t) Figure a) Find the frequency spectrum S(t) of s(t) and deduce its bandwidth. You may directly use the table provided at the...
Help solve in MATLAB 1. Let m(t) be the 2-bit modulating signal and s(t) cos(at) be...
Help solve in MATLAB
1. Let m(t) be the 2-bit modulating signal and s(t) cos(at) be carrier signal as shown in Figure 3. Plot these two signals in 2 separated figures using MATLAB with a, = 600Or rad/s and t = 0:7, :0.01 sec where fs = 10MHz be the sampling rate to satisfy Nyquist theorem. Use the zoom in tool of MATLAB to clearly look at the signal if necessary. You can use the MATLAB function below to produce...
Problem 2 (40 points) Suppose that the modulating (message) signal is m(t)-500si ne(4000πt) and the carrier frequency is o20000x rad/s (see the definition of the sinc function at the bottom of the ne...
Problem 2 (40 points) Suppose that the modulating (message) signal is m(t)-500si ne(4000πt) and the carrier frequency is o20000x rad/s (see the definition of the sinc function at the bottom of the next page). a) Write the mathematical expression of M(o) and sketch it (label the axes carefully). Let qDSB-Sc (t)-2m(t)cos.. Write the mathematical expression of φ)DSB-SC(w) and sketch it (label the axes carefully). b) c) Suppress the USB in the DSB-SC spectrum you sketched in (b) to find the...
Select the correct statement that describes what you see in the plots: a. The signal, s(t),...
Select the correct statement that describes what you see in the
plots:
a. The signal, s(t), is distorted by the dramatic change in message
frequency.
b. The message amplitude change can be seen in the signal plot of
s(t). When comparing plots for s(t) and m(t), it is obvious that
the signal accurately represents the message.
c. Both the message and carrier frequencies increase, therefore
distortion will be experienced.
d. The phase of the signal has shifted to the right,...
Given the in-phase/quadrature representation of a real bandpass signal s(t)- 2 cos π6,000t-sin π6,000, determine its equivalent (i) complex baseband representation and (ii) envelop and phase representation.
Given the in-phase/quadrature representation of a real bandpass signal s(t)- 2 cos π6,000t-sin π6,000, determine its equivalent (i) complex baseband representation and (ii) envelop and phase representation.
2. Question: A baseband signal has a bandwidth B = 10 kHz. The carrier frequency is ae = 2x 106 f the DSB-SC signal. T. Find the Nyquist frequency and Nyquist interval 0 of
Let a modulated signal be: s(t)=100cos(2100st) +100cos(2000xt) + 100cos(1900xt) where unmodulated carrier is c(t)=100cos(2000xt) where the carrier amplitude is Ac=100V and the carrier frequency is fc=1000Hz (6=2000m). a. Find the complex envelope g(t) for the modulated signal. b. Whaktype of modulation is involved? What is the modulating signal m(t)? c. Evaluate and draw the Power Spectral Density P.) of the modulated signal. d. Find the average (normalized) power P for this modulated signal. e. Evaluate the actual Peak Envelope Power...
Solve using Matlab:
FM spectrum: A message signal m(t) (shown below) is used to modulate a carrier with frequency (fc) in a FM system with kr 90, find and plot the FM signal s(t) in both time and frequency domains. Use the value of fc-1000. m(t) (V) 3.5 t (ms) 250 [Note that m(t) is zero for t<0 and t>250 ms
FM spectrum: A message signal m(t) (shown below) is used to modulate a carrier with frequency (fc) in a...
5. Consider the following message signal: m(t) -2 .3 10 Assume that the carrier frequency is f are kf = 105, kp-25 respectively. 108 Hz, and frequency and phase deviation constants Find the maximum and minimum frequency deviation for FM, and sketch the FM wave for a duration of 103 seconds shown in the above figure (5 points). a. b. Find the maximum and minimum frequency deviation for PM, sketch the PM wave for a duration of 103 seconds shown...
A Digital Signal Processing system is taking at its input the following analogue signal s(t); s(t) - 20+ 20 cos(24xt)cos(xt), Where time t is expressed in ms. Part 1 - Setting the sampling frequency: (11 Marks) As a start, the system comprises only a sampler and an ideal analogue reconstructor as follows: w(t) s(t) Sampler Analogue Reconstructor s,(t) Figure a) Find the frequency spectrum S(t) of s(t) and deduce its bandwidth. You may directly use the table provided at the...
Help solve in MATLAB
1. Let m(t) be the 2-bit modulating signal and s(t) cos(at) be carrier signal as shown in Figure 3. Plot these two signals in 2 separated figures using MATLAB with a, = 600Or rad/s and t = 0:7, :0.01 sec where fs = 10MHz be the sampling rate to satisfy Nyquist theorem. Use the zoom in tool of MATLAB to clearly look at the signal if necessary. You can use the MATLAB function below to produce...
Problem 2 (40 points) Suppose that the modulating (message) signal is m(t)-500si ne(4000πt) and the carrier frequency is o20000x rad/s (see the definition of the sinc function at the bottom of the next page). a) Write the mathematical expression of M(o) and sketch it (label the axes carefully). Let qDSB-Sc (t)-2m(t)cos.. Write the mathematical expression of φ)DSB-SC(w) and sketch it (label the axes carefully). b) c) Suppress the USB in the DSB-SC spectrum you sketched in (b) to find the...
Select the correct statement that describes what you see in the
plots:
a. The signal, s(t), is distorted by the dramatic change in message
frequency.
b. The message amplitude change can be seen in the signal plot of
s(t). When comparing plots for s(t) and m(t), it is obvious that
the signal accurately represents the message.
c. Both the message and carrier frequencies increase, therefore
distortion will be experienced.
d. The phase of the signal has shifted to the right,...
Most questions answered within 3 hours.
-
An MNE is this kind of industry when competition in one country
is essentially independent of...
asked 1 hour ago -
. For this set of questions, determine what
proportion of a normal distribution is located betweeneach...
asked 1 hour ago -
A college student is employed as a door-to-door newspaper
salesman. Historical data suggests that the student...
asked 2 hours ago -
MATLAB HW 11 problem using Switch Case and Input commands
Write a script file that calculates...
asked 2 hours ago -
Considering gravitational time dilation, calculate the time that
passes in Earth’s surface while 1 hour passes...
asked 3 hours ago -
Minitab Problem: Take the Lake Hume June rainfall data and find
use the processes outlined in...
asked 4 hours ago -
X Company is trying to decide whether to continue using old
equipment to make Product A...
asked 4 hours ago -
IN PYTHON ONLY !! Program 2: Re-work
program #5 (WeeklyHours) from the previous assignment such that...
asked 4 hours ago -
The average length of time between arrivals at a turnpike
toll-booth is 26 seconds. What is...
asked 6 hours ago -
(a) A piston at 6.1 atm contains a gas that occupies a volume of
3.5 L....
asked 7 hours ago -
Please answer true or false. Words
cannot be changed or added in to make it true...
asked 7 hours ago -
An empty test tube weighs 15.923 grams. Then,
MgCl2•6H2O is added into the test tube. After...
asked 7 hours ago