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Question 3: The input signal m (t)-2cos(4000π) and the carrier signal is 100...
Consider the message signal m(t)=2cos(2001Tt)+3sin(4001Tt). Work out by hand the expected frequency spectrum and output waveform...
Consider the message signal m(t)=2cos(2001Tt)+3sin(4001Tt). Work out by hand the expected frequency spectrum and output waveform when m(t) is input to the AM DSB FC modulator, and a modulation index of 0.8 is achieved. Assume that the carrier frequency of the modulator is set to 2 MHz.
2. [20 points] The carrier c(t-Acce(2106 t) is frequency modulated by the sinusoid signal m(t) 2cos...
2. [20 points] The carrier c(t-Acce(2106 t) is frequency modulated by the sinusoid signal m(t) 2cos (2000mt). The deviation constant is kr 3000 Hz/V Determine the bandwidth of the modulated signal using Carson's rule a. Sketch the magnitude of the spectrum of the modulated signal (plot only those frequency components that lie within the bandwidth derived in part a) with detailed information such as the areas of delta function determined by the Bessel function, frequency separation between each spectrum (note...
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....
4. Given a modulating signal m(t) = 2cos (100nt) + 2cos (250nt) + 2sin (100nt) is...
4. Given a modulating signal m(t) = 2cos (100nt) + 2cos (250nt) + 2sin (100nt) is modulated using AM SSB-SC using fe at 1000 Hz. (a) Draw by hand, the magnitude spectra of the modulated signal, retaining the Lower Sidebands, for the appropriate frequency range in Hz. (4) (b) Diagram and explain the demodulation and filtering process to retrieve m(t). (4) (c) What must be modified in the modulation and demodulation processes if you were to implement AM VSB vs....
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?
Use MATLAB to plot the AM DSBSC modulated signals with modulation index m=0.25,0.5,0.8,1.0,1.2,1.5,2.0 with carrier signal...
Use MATLAB to plot the AM DSBSC modulated signals with modulation index m=0.25,0.5,0.8,1.0,1.2,1.5,2.0 with carrier signal c(t)=20cos(2pi20000t) and massage signal m(t)=Vm cos(2pi3000t) along with the envelope.
5. A message signal m(t) = cos(2000πt)+2 cos(4000πt) modulates the carrier c(t) = 100 cos(2πfct), where...
5. A message signal m(t) = cos(2000πt)+2 cos(4000πt) modulates the carrier c(t) = 100 cos(2πfct), where fc = 1 MHz to produce the DSB signal m(t)c(t). ( 1. Determine the expression for the upper-sideband (USB) signal. 2. Determine and sketch the spectrum of the USB signal.
3. The input signal to a certain filter is given by Vin(t) = 2cos (10 state...
3. The input signal to a certain filter is given by Vin(t) = 2cos (10 state output is given by Vout(t) = cos(10000 t + 20°). Determine the filter this will include both a magnitude and phase angle). * 2cos (10000nt - 25%) and the steady- °). Determine the transfer function of
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...
A message m(t) sinc2 (M) cos (2π9t) is used to modulate a carrier to produce an...
A message m(t) sinc2 (M) cos (2π9t) is used to modulate a carrier to produce an LSB-AM signal. (a) Find and sketch the spectrum of m(t); determine and sketch the spectrum of mh (t) graphically; determine m,(t) by finding the inverse Fourier transform of the previous spectrum; determine the LSB-AM message signal expression. (b) Sketch the spectrum of the DSB-SC signal 2m(t) cos 2mfet; remove the upper sideband and sketch the resulting LSB spectrum; determine the LSB-AM message signal expression...
Consider the message signal m(t)=2cos(2001Tt)+3sin(4001Tt). Work out by hand the expected frequency spectrum and output waveform when m(t) is input to the AM DSB FC modulator, and a modulation index of 0.8 is achieved. Assume that the carrier frequency of the modulator is set to 2 MHz.
2. [20 points] The carrier c(t-Acce(2106 t) is frequency modulated by the sinusoid signal m(t) 2cos (2000mt). The deviation constant is kr 3000 Hz/V Determine the bandwidth of the modulated signal using Carson's rule a. Sketch the magnitude of the spectrum of the modulated signal (plot only those frequency components that lie within the bandwidth derived in part a) with detailed information such as the areas of delta function determined by the Bessel function, frequency separation between each spectrum (note...
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....
4. Given a modulating signal m(t) = 2cos (100nt) + 2cos (250nt) + 2sin (100nt) is modulated using AM SSB-SC using fe at 1000 Hz. (a) Draw by hand, the magnitude spectra of the modulated signal, retaining the Lower Sidebands, for the appropriate frequency range in Hz. (4) (b) Diagram and explain the demodulation and filtering process to retrieve m(t). (4) (c) What must be modified in the modulation and demodulation processes if you were to implement AM VSB vs....
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?
3. The input signal to a certain filter is given by Vin(t) = 2cos (10 state output is given by Vout(t) = cos(10000 t + 20°). Determine the filter this will include both a magnitude and phase angle). * 2cos (10000nt - 25%) and the steady- °). Determine the transfer function of
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...
A message m(t) sinc2 (M) cos (2π9t) is used to modulate a carrier to produce an LSB-AM signal. (a) Find and sketch the spectrum of m(t); determine and sketch the spectrum of mh (t) graphically; determine m,(t) by finding the inverse Fourier transform of the previous spectrum; determine the LSB-AM message signal expression. (b) Sketch the spectrum of the DSB-SC signal 2m(t) cos 2mfet; remove the upper sideband and sketch the resulting LSB spectrum; determine the LSB-AM message signal expression...
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