![The message signal m (t) = Am cos (2nf, t) is used to generate the VSB signal ( 1-α)AμΑ, aAm A cos [2T(fe+fm)t]+ 2 cos [2T(f-](http://img.homeworklib.com/images/a93d61fa-59f1-4ff7-a61d-741d619efdd4.png?x-oss-process=image/resize,w_560)
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The message signal m (t) = Am cos (2nf, t) is used to generate the VSB signal ( 1-α)AμΑ, aAm A cos [2T(fe+fm)t]+ 2...
Question 4: (20 points) An FM signal is modulated with message m(t)Am cos(2Tmt). The measured amp...
Question 4: (20 points) An FM signal is modulated with message m(t)Am cos(2Tmt). The measured amplitude spectrum, SPM(f), is shown below: Amplitude spectrum of the frequency modulated signal 2 -2 5000 4000 3000 2000 -1000 1000 2000 3000 4000 5000 frequency f [Hz] a) What is the carrier frequency fe? b) What is the message frequency fm c) What is the FM modulation index Bf? Is it a narrowband or a wideband signal? d) Using Carson's rule, estimate the transmission...
4. The single tone modulating signal m(t)-A, cos 2π.fmt is used to generate the VSB signal where ...
4. The single tone modulating signal m(t)-A, cos 2π.fmt is used to generate the VSB signal where k is a constant, less than unity, representing the attenuation of the upper side frequency. If we represent this VSB signal as a quadrature modulator x(t)-Am(t) cos2r ft A.m,(1) sin 2rft, what is mi(t) and m2()? (20pts)
4. The single tone modulating signal m(t)-A, cos 2π.fmt is used to generate the VSB signal where k is a constant, less than unity, representing the...
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....
1. Given a baseband signal m(t) sin(1000mt) cos(3000nt) + cos(3700nt a. Sketch the spectrum of m(...
1. Given a baseband signal m(t) sin(1000mt) cos(3000nt) + cos(3700nt a. Sketch the spectrum of m(t) (Hint. sin(a) cos(b) 0.5 sin(a +b) +0.5sin a-b)) b. Sketch the spectrum of DSB-CS signal m(t)cos(10000mt) C ldentify the upper sideband {USB) and lower sideband (LSB) spectra d. Give the black diagram of the receiver to receive DSB-CS signal in (b). 2. baseband signal m(r)--0.5 + Σ..小(t-n)-u(t-0.5-n)] where ult) is the Given unit step function, an amplitude modulated signal is as SAM 107+ m(0cos...
Power Spectrum of AM A baseband message signal is given byWn (t)-5 cos 2π 2500t +...
Power Spectrum of AM A baseband message signal is given byWn (t)-5 cos 2π 2500t + 4 cos 2π 5500. An AM waveform carrying this message g(t)-50[1 + μ m(t) mp]cos 2π5x 109, where mp s the peak value of m(t a) Plot (by hand) the power spectrum S (f) of the AM waveform g(t) with 0.6 (You can get help with this from the handout A Power Spectrum Primer. See the section "Finding the Power Spectrum of a Periodic...
Please finish these questions. Thank you Given find the Fourier transform of the following: (a) e dt 2T(2 1) 4 cos (2t) (Using properties of Fourier Transform to find) a) Suppose a signal m(t) is giv...
Please finish these questions. Thank you
Given find the Fourier transform of the following: (a) e dt 2T(2 1) 4 cos (2t) (Using properties of Fourier Transform to find) a) Suppose a signal m(t) is given by m()-1+sin(2 fm) where fm-10 Hz. Sketch the signal m(t) in time domain b) Find the Fourier transform M(jo) of m(t) and sketch the magnitude of M(jo) c) If m(t) is amplitude modulated with a carrier signal by x(t)-m(t)cos(27r f,1) (where fe-1000 Hz), sketch...
Consider an AM system. The message signal is given by cos(1000t) volts. The modulated signal is (0.5+acos(1000m))cos(2π.) volts, where α is a positive coefficient, and fe is the carrier frequency. (a...
Consider an AM system. The message signal is given by cos(1000t) volts. The modulated signal is (0.5+acos(1000m))cos(2π.) volts, where α is a positive coefficient, and fe is the carrier frequency. (a) Determine the value of α when the modulation index is 100%. (b) Determine the value of α when the modulation index is 50%. (c) Determine the value of α when the modulation index is 200%. (6 marks) Continue from (1) and suppose α-05. Sketch the spectrum of the transmitted...
1. FM modulation. Consider a message signal m(t)-(2nt and a carrier wave c(t)-cos(400rt) (a) (20 points)...
1. FM modulation. Consider a message signal m(t)-(2nt and a carrier wave c(t)-cos(400rt) (a) (20 points) Derive the FM modulated signal s(t) for ky-2 (b) (25 points) Find the Fourier transform, S(), of s(t) (Sketch to scale). (c) (5 points) What is the bandwidth of the modulated signal s(t).
3(20%) Assume a message signal is given by m(t) = 4 cos(2π//) + cos(4π.t). Let x (t)-5m(t) cos(2t f t) + 5m(t) sin(...
3(20%) Assume a message signal is given by m(t) = 4 cos(2π//) + cos(4π.t). Let x (t)-5m(t) cos(2t f t) + 5m(t) sin( 2 fct), where m(t) İs the Hilbert Transform of m(t). (10%) (a) Derive x(t) (10%) (b) Prove, by sketching the spectra, that x(t) is a lower-sideband SSB signal of m(t).
3(20%) Assume a message signal is given by m(t) = 4 cos(2π//) + cos(4π.t). Let x (t)-5m(t) cos(2t f t) + 5m(t) sin( 2 fct), where m(t)...
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...
Question 4: (20 points) An FM signal is modulated with message m(t)Am cos(2Tmt). The measured amplitude spectrum, SPM(f), is shown below: Amplitude spectrum of the frequency modulated signal 2 -2 5000 4000 3000 2000 -1000 1000 2000 3000 4000 5000 frequency f [Hz] a) What is the carrier frequency fe? b) What is the message frequency fm c) What is the FM modulation index Bf? Is it a narrowband or a wideband signal? d) Using Carson's rule, estimate the transmission...
4. The single tone modulating signal m(t)-A, cos 2π.fmt is used to generate the VSB signal where k is a constant, less than unity, representing the attenuation of the upper side frequency. If we represent this VSB signal as a quadrature modulator x(t)-Am(t) cos2r ft A.m,(1) sin 2rft, what is mi(t) and m2()? (20pts)
4. The single tone modulating signal m(t)-A, cos 2π.fmt is used to generate the VSB signal where k is a constant, less than unity, representing the...
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....
1. Given a baseband signal m(t) sin(1000mt) cos(3000nt) + cos(3700nt a. Sketch the spectrum of m(t) (Hint. sin(a) cos(b) 0.5 sin(a +b) +0.5sin a-b)) b. Sketch the spectrum of DSB-CS signal m(t)cos(10000mt) C ldentify the upper sideband {USB) and lower sideband (LSB) spectra d. Give the black diagram of the receiver to receive DSB-CS signal in (b). 2. baseband signal m(r)--0.5 + Σ..小(t-n)-u(t-0.5-n)] where ult) is the Given unit step function, an amplitude modulated signal is as SAM 107+ m(0cos...
Power Spectrum of AM A baseband message signal is given byWn (t)-5 cos 2π 2500t + 4 cos 2π 5500. An AM waveform carrying this message g(t)-50[1 + μ m(t) mp]cos 2π5x 109, where mp s the peak value of m(t a) Plot (by hand) the power spectrum S (f) of the AM waveform g(t) with 0.6 (You can get help with this from the handout A Power Spectrum Primer. See the section "Finding the Power Spectrum of a Periodic...
Please finish these questions. Thank you
Given find the Fourier transform of the following: (a) e dt 2T(2 1) 4 cos (2t) (Using properties of Fourier Transform to find) a) Suppose a signal m(t) is given by m()-1+sin(2 fm) where fm-10 Hz. Sketch the signal m(t) in time domain b) Find the Fourier transform M(jo) of m(t) and sketch the magnitude of M(jo) c) If m(t) is amplitude modulated with a carrier signal by x(t)-m(t)cos(27r f,1) (where fe-1000 Hz), sketch...
Consider an AM system. The message signal is given by cos(1000t) volts. The modulated signal is (0.5+acos(1000m))cos(2π.) volts, where α is a positive coefficient, and fe is the carrier frequency. (a) Determine the value of α when the modulation index is 100%. (b) Determine the value of α when the modulation index is 50%. (c) Determine the value of α when the modulation index is 200%. (6 marks) Continue from (1) and suppose α-05. Sketch the spectrum of the transmitted...
1. FM modulation. Consider a message signal m(t)-(2nt and a carrier wave c(t)-cos(400rt) (a) (20 points) Derive the FM modulated signal s(t) for ky-2 (b) (25 points) Find the Fourier transform, S(), of s(t) (Sketch to scale). (c) (5 points) What is the bandwidth of the modulated signal s(t).
3(20%) Assume a message signal is given by m(t) = 4 cos(2π//) + cos(4π.t). Let x (t)-5m(t) cos(2t f t) + 5m(t) sin( 2 fct), where m(t) İs the Hilbert Transform of m(t). (10%) (a) Derive x(t) (10%) (b) Prove, by sketching the spectra, that x(t) is a lower-sideband SSB signal of m(t).
3(20%) Assume a message signal is given by m(t) = 4 cos(2π//) + cos(4π.t). Let x (t)-5m(t) cos(2t f t) + 5m(t) sin( 2 fct), where m(t)...
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...
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