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got 50 min sgn(t) and unmodulated carrier cos(wct), draw the output of unmodulate 3. a. For the message signal m(t)-2sgn(t) phase modulator with m(t) (k/4) cos(o t b. For the message signal m(t)--...
3. a. For the message signal m(t)-2sgnit) and unmodulated carrier cos(u,ti, draw the output of phase modulator with m(t) (n/4) cos(ω-') - For the message signal m(t)--2sgn(t) and unmodulated c...
3. a. For the message signal m(t)-2sgnit) and unmodulated carrier cos(u,ti, draw the output of phase modulator with m(t) (n/4) cos(ω-') - For the message signal m(t)--2sgn(t) and unmodulated carrier cos(w,t) shown above where -20m, draw the output of frequency modulator with m(t) (k-10n)
3. a. For the message signal m(t)-2sgnit) and unmodulated carrier cos(u,ti, draw the output of phase modulator with m(t) (n/4) cos(ω-') - For the message signal m(t)--2sgn(t) and unmodulated carrier cos(w,t) shown above where -20m, draw...
4. (20%) An AM modulator operates with the message signal m(t) - 9 cos(207t)-8 cos(60!). The unmodulated carrier is...
4. (20%) An AM modulator operates with the message signal m(t) - 9 cos(207t)-8 cos(60!). The unmodulated carrier is given by 110 cos 200r), and the system operates with an index of 0.8. (10%) (a) Given that the minimum value ofm(t) is-12.9, write the equation for m, (t). and determine the power of m,(r) (i.e.. m,())) (b) Determine the efficiency of the modulator 5%) (500) (c) Sketch the double-sided spectrum of the modulator output AM signal.
4. (20%) An AM...
3.8 An AM modulator operates with the message signal m(t)-9 cos(20π)--8 cos(60π) m(t) = 9 cos(20π)...
3.8 An AM modulator operates with the message signal m(t)-9 cos(20π)--8 cos(60π) m(t) = 9 cos(20π) + 8 cos(60x1) The unmodulated carrier is given by 110cos(200)Same steps with another signal. and the system operates with an index of 0.8 the system operates with an indet or (a) Write the equation for ma(t), the normalized sig- nal with a minimum value of- (b) Determine (m the power in m (c) Determine the efficiency of the modulator (d) Sketch the double-sided spectrum...
Prob. 3 An FM modulator output signal is given by Prm 5 cos(2nft + 2nk, m(t)dr)....
Prob. 3 An FM modulator output signal is given by Prm 5 cos(2nft + 2nk, m(t)dr). where k, = 30 H2/V. Assume that the message signal is the rectangular pulse m(1) = 8rect «- 2) (a) Sketch the phase deviation in radians. (b) Sketch the frequency deviation in Hz. (c) Determine the peak frequency deviation in Hz. (d) Is this NBFM or WBFM?
Q2 The output signal of an angle modulator is given as V(t) = 6 cos(2000000net +...
Q2 The output signal of an angle modulator is given as V(t) = 6 cos(2000000net + 40 cos(2000xt) + 15cos (400nt)) (v) Determine the following: The average power of the signal. b) The carrier frequency of the signal. The instantaneous frequency of the signal. d) The instantaneous maximum frequency deviation of the signal. e) The wavefom of the message signal, assuming a frequency modulation (FM). f) The modulation index, assuming a FM. Is it a broadband FM or narrowband FM...
[15 points] You are asked to design a DSB-SC AM modulator to generate a modulated signal km(t)cos...
[15 points] You are asked to design a DSB-SC AM modulator to generate a modulated signal km(t)cos(wt+0), where m(t) is a signal band-limited to B Hz. The following figure shows a DSB- SC AM modulator available in the stockroom. The carrier generator available generates not cos(wct), but cos (wct). Explain whether you would be able to generate the desired signal using only this equipment. You may use any kind of filter you like. 3. What kind of filter is required...
TO 2, the signal m(t) 20 sinc ( 400't) is an input to a ring modulator...
TO 2, the signal m(t) 20 sinc ( 400't) is an input to a ring modulator with carrier frequency 10 fm where fm is the maximum frequency of m(t)} (a) Draw the block diagram of the used ring modulator and write down equation of the output signal of the modulator (b) Sketch spectrum of the modulated transmitted AM signal (c) Sketch the corresponding VSB AM spectrum with 25% of visitgal band relative to the other band.
TO 2, the signal...
Consider the message signal m(t):
Consider the message signal m(t):a. Sketch the AM signal u(t)=[ A + m(t) ] Cos(wct) for modulation indexes μ = 0.5 and μ = 2.0 by assuming the carrier frequency to be much higher than the bandwidth of m(t) b. Determine the efficiency percentage (η = ps/pt) for μ = 0.5. Herein, Ps and Pt are sideband and total powers respectively, and Pt= Ps + Pc , in which Pc is the carrier power. Hint : Take into account the Parseval's property. c. If the AM waveforms corresponding...
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?
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....
3. a. For the message signal m(t)-2sgnit) and unmodulated carrier cos(u,ti, draw the output of phase modulator with m(t) (n/4) cos(ω-') - For the message signal m(t)--2sgn(t) and unmodulated carrier cos(w,t) shown above where -20m, draw the output of frequency modulator with m(t) (k-10n)
3. a. For the message signal m(t)-2sgnit) and unmodulated carrier cos(u,ti, draw the output of phase modulator with m(t) (n/4) cos(ω-') - For the message signal m(t)--2sgn(t) and unmodulated carrier cos(w,t) shown above where -20m, draw...
4. (20%) An AM modulator operates with the message signal m(t) - 9 cos(207t)-8 cos(60!). The unmodulated carrier is given by 110 cos 200r), and the system operates with an index of 0.8. (10%) (a) Given that the minimum value ofm(t) is-12.9, write the equation for m, (t). and determine the power of m,(r) (i.e.. m,())) (b) Determine the efficiency of the modulator 5%) (500) (c) Sketch the double-sided spectrum of the modulator output AM signal.
4. (20%) An AM...
3.8 An AM modulator operates with the message signal m(t)-9 cos(20π)--8 cos(60π) m(t) = 9 cos(20π) + 8 cos(60x1) The unmodulated carrier is given by 110cos(200)Same steps with another signal. and the system operates with an index of 0.8 the system operates with an indet or (a) Write the equation for ma(t), the normalized sig- nal with a minimum value of- (b) Determine (m the power in m (c) Determine the efficiency of the modulator (d) Sketch the double-sided spectrum...
Prob. 3 An FM modulator output signal is given by Prm 5 cos(2nft + 2nk, m(t)dr). where k, = 30 H2/V. Assume that the message signal is the rectangular pulse m(1) = 8rect «- 2) (a) Sketch the phase deviation in radians. (b) Sketch the frequency deviation in Hz. (c) Determine the peak frequency deviation in Hz. (d) Is this NBFM or WBFM?
Q2 The output signal of an angle modulator is given as V(t) = 6 cos(2000000net + 40 cos(2000xt) + 15cos (400nt)) (v) Determine the following: The average power of the signal. b) The carrier frequency of the signal. The instantaneous frequency of the signal. d) The instantaneous maximum frequency deviation of the signal. e) The wavefom of the message signal, assuming a frequency modulation (FM). f) The modulation index, assuming a FM. Is it a broadband FM or narrowband FM...
[15 points] You are asked to design a DSB-SC AM modulator to generate a modulated signal km(t)cos(wt+0), where m(t) is a signal band-limited to B Hz. The following figure shows a DSB- SC AM modulator available in the stockroom. The carrier generator available generates not cos(wct), but cos (wct). Explain whether you would be able to generate the desired signal using only this equipment. You may use any kind of filter you like. 3. What kind of filter is required...
TO 2, the signal m(t) 20 sinc ( 400't) is an input to a ring modulator with carrier frequency 10 fm where fm is the maximum frequency of m(t)} (a) Draw the block diagram of the used ring modulator and write down equation of the output signal of the modulator (b) Sketch spectrum of the modulated transmitted AM signal (c) Sketch the corresponding VSB AM spectrum with 25% of visitgal band relative to the other band.
TO 2, the signal...
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?
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