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AM Modulator AM Demodulator m(t) SAM-DSB-Sc(t) mdemod(t) LPF cos2nfct cos2nfct Figure 1 P1. For the system...
AM Modulator AM Demodulator m(t) SAM-DSB-Sc(t) mdemod(t) LPF cos2nfct cos2nfct Figure 1 P1. For the system...
AM Modulator AM Demodulator m(t) SAM-DSB-Sc(t) mdemod(t) LPF cos2nfct cos2nfct Figure 1 P1. For the system shown in Figure 1, sketch the signals m(t), SAM-DSB-sc(t), and mde mod (t) in the time and frequency domain, assuming m(t)=cos 20rd and that AM- DSB-SC is the modulation scheme used with f. = 100Hz P2. Repeat P1 changing m(t) to a 10 Hz square wave, with amplitude 1 (Figure 2) s(t) t 0.05 0.1 Figure 2
AM Modulator AM Demodulator m(t) mdemod(t) SAM-DSB-C(t) LPF Х Х с cos21fct cos2nfct Figure 3 P3....
AM Modulator AM Demodulator m(t) mdemod(t) SAM-DSB-C(t) LPF Х Х с cos21fct cos2nfct Figure 3 P3. For the system shown in Figure 3, sketch the signals m(t), SAM-DSP-c(t), and mde mod(t) in the time and frequency domain, assuming m(t)=cos 20rd and that AM- DSB-C is the modulation scheme used with f. = 100Hz. Use DC offset c=1. P4. Repeat P3 changing m(t) to a 10 Hz square wave, with amplitude 1 (Figure 2). P5. Repeat P3 and P4, using DC...
Assume m(t) is a 10 Hz square wave, with amplitude 1, and that AM-DSB-C is the...
Assume m(t) is a 10 Hz square wave, with amplitude 1,
and that AM-DSB-C is the modulation scheme used with fc =
100Hz.
AM Modulator AM Demodulator m(t) SAM-DSB-sc(t) mdemod(t) LPF cos2nfct cos21fct S Figure 1 P1. For the system shown in Figure 1, sketch the signals mſt), mde mod (t) in the time and frequency domain c(t), and AM-DSB-SC
Please solve for P4, NOT P3. Use DC offset c = 0, c = 1 and...
Please solve for P4, NOT P3. Use DC offset c =
0, c = 1 and c = 1.5
AM Modulator AM Demodulator m(t) mdemod(t) SAM-DSB-C(t) LPF Х cos2ft cos2nfct Figure 3 P3. For the system shown in Figure 3, sketch the signals m(t), SAM-pse-c (t), and "de mod(t) in the time and frequency domain, assuming m(t)=cos 20nt and that AM- DSB-C is the modulation scheme used with f. = 100Hz. P4. Repeat P3 changing m(t) to a 10 Hz...
[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...
Problem A DSB-SC AM signal is modulated by the signal m(t) = cos(4000st) - cos(1000nt). The...
Problem A DSB-SC AM signal is modulated by the signal m(t) = cos(4000st) - cos(1000nt). The modulated signal is u(t) = 200 m(t) cos(21tfct), where f=1 MHz. 1. Determine and sketch the spectrum of the AM signal. 2. Determine the average power in the frequency components 3. Find a resonable choice of R and C to design an envelope detector for this DSB-SC AM 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....
Cny e upper sldeband (uSB) and lower sideband (LSB) spectra. (5 polnts) Al 2. Figure-1 below show...
Cny e upper sldeband (uSB) and lower sideband (LSB) spectra. (5 polnts) Al 2. Figure-1 below shows a DSB-SC modulator. The carrier avaliable at the multiplier is a distorted sinusoid given by c(t)- Cos3(wet). The spectrum of m(t) is shown in Figure-2 M(f) m(t) Fllter -В c(t) Figure-2 Figure 1 a. Determine the signals and sketch their spectra at points b and c. (5 points). b. What kind of filter is required in Figure-1? Verify your answer. (5 points). c....
4.2.1 For each of the baseband signals: (i) m(t) = cos 1000πι; (ii) m(1) = 2cos...
4.2.1 For each of the baseband signals: (i) m(t) = cos 1000πι; (ii) m(1) = 2cos sin 2000Tr; (ii) m(t) cos 1000t t cos 3000T t, do the following. (a) Sketch the spectrum of mt). (b) Sketch the spectrum of the DSB-SC signal mt) cos 10.000π. (c) Identify the upper sideband (USB) and the lower sideband (LSB) spectra. (d) Identify the frequencies in the baseband, and the corresponding frequencies in the DSB-SC USB, and LSB spectra. Explain the nature of...
Make sure you show all working and describe each step in your calculations. 1. A signum function ...
signals and communications 2
Make sure you show all working and describe each step in your calculations. 1. A signum function is defined as sgn(t) = { 1、12 0 1 t<0 Plot and express this function in terms of the unit-step function. 5 marks/ Determine and plot the even and odd parts of the signal 2. x(t) (te-3 +2)u(t). 5 marks 3. If prove that y[n-m] = x[n-m] * h[n]. 5 marks 4. Assuming α > 0, plot the signal...
AM Modulator AM Demodulator m(t) SAM-DSB-Sc(t) mdemod(t) LPF cos2nfct cos2nfct Figure 1 P1. For the system shown in Figure 1, sketch the signals m(t), SAM-DSB-sc(t), and mde mod (t) in the time and frequency domain, assuming m(t)=cos 20rd and that AM- DSB-SC is the modulation scheme used with f. = 100Hz P2. Repeat P1 changing m(t) to a 10 Hz square wave, with amplitude 1 (Figure 2) s(t) t 0.05 0.1 Figure 2
AM Modulator AM Demodulator m(t) mdemod(t) SAM-DSB-C(t) LPF Х Х с cos21fct cos2nfct Figure 3 P3. For the system shown in Figure 3, sketch the signals m(t), SAM-DSP-c(t), and mde mod(t) in the time and frequency domain, assuming m(t)=cos 20rd and that AM- DSB-C is the modulation scheme used with f. = 100Hz. Use DC offset c=1. P4. Repeat P3 changing m(t) to a 10 Hz square wave, with amplitude 1 (Figure 2). P5. Repeat P3 and P4, using DC...
Assume m(t) is a 10 Hz square wave, with amplitude 1,
and that AM-DSB-C is the modulation scheme used with fc =
100Hz.
AM Modulator AM Demodulator m(t) SAM-DSB-sc(t) mdemod(t) LPF cos2nfct cos21fct S Figure 1 P1. For the system shown in Figure 1, sketch the signals mſt), mde mod (t) in the time and frequency domain c(t), and AM-DSB-SC
Please solve for P4, NOT P3. Use DC offset c =
0, c = 1 and c = 1.5
AM Modulator AM Demodulator m(t) mdemod(t) SAM-DSB-C(t) LPF Х cos2ft cos2nfct Figure 3 P3. For the system shown in Figure 3, sketch the signals m(t), SAM-pse-c (t), and "de mod(t) in the time and frequency domain, assuming m(t)=cos 20nt and that AM- DSB-C is the modulation scheme used with f. = 100Hz. P4. Repeat P3 changing m(t) to a 10 Hz...
[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...
Problem A DSB-SC AM signal is modulated by the signal m(t) = cos(4000st) - cos(1000nt). The modulated signal is u(t) = 200 m(t) cos(21tfct), where f=1 MHz. 1. Determine and sketch the spectrum of the AM signal. 2. Determine the average power in the frequency components 3. Find a resonable choice of R and C to design an envelope detector for this DSB-SC AM signal.
Cny e upper sldeband (uSB) and lower sideband (LSB) spectra. (5 polnts) Al 2. Figure-1 below shows a DSB-SC modulator. The carrier avaliable at the multiplier is a distorted sinusoid given by c(t)- Cos3(wet). The spectrum of m(t) is shown in Figure-2 M(f) m(t) Fllter -В c(t) Figure-2 Figure 1 a. Determine the signals and sketch their spectra at points b and c. (5 points). b. What kind of filter is required in Figure-1? Verify your answer. (5 points). c....
4.2.1 For each of the baseband signals: (i) m(t) = cos 1000πι; (ii) m(1) = 2cos sin 2000Tr; (ii) m(t) cos 1000t t cos 3000T t, do the following. (a) Sketch the spectrum of mt). (b) Sketch the spectrum of the DSB-SC signal mt) cos 10.000π. (c) Identify the upper sideband (USB) and the lower sideband (LSB) spectra. (d) Identify the frequencies in the baseband, and the corresponding frequencies in the DSB-SC USB, and LSB spectra. Explain the nature of...
signals and communications 2
Make sure you show all working and describe each step in your calculations. 1. A signum function is defined as sgn(t) = { 1、12 0 1 t<0 Plot and express this function in terms of the unit-step function. 5 marks/ Determine and plot the even and odd parts of the signal 2. x(t) (te-3 +2)u(t). 5 marks 3. If prove that y[n-m] = x[n-m] * h[n]. 5 marks 4. Assuming α > 0, plot the signal...
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