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#2 The following figure shows the block diagram of an AM modulator. mx m()+c) Nonlinear )...
#2 The following figure shows the block diagram of an AM modulator. Nonlinear s(t) devicefilter The...
#2 The following figure shows the block diagram of an AM modulator. Nonlinear s(t) devicefilter The nonlinear device has an input-output characteristic of the form y0)-a x(0)+bx() where a and b are constants. Assume that the message signal is m)-A, cos(2rf.1) and (a) Determine the signal y). (b) Determine the AM signal s() (c) What kind of the filter is required in the above figure? (d) What is the amplitude sensitivity of this AM signal.
[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...
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...
The figure below shows the block diagram of a two-stage SSB modulator. The input signal /...
The figure below shows the block diagram of a two-stage SSB modulator. The input signal / consists of a voice signal occupying the frequency of 3.4 KHz. The oscillator frequencies are Si=100 KHz and 2-10 MHz (6) vo Product Modulator Product Modulator BPF Passes USB only BPF Passes USB only A, cos(2.781) A, cos( 21) Specify the sidebands of all the modulated signals appearing in this system. {, vo), 20). 0),
(14%) 6. Consider an FM modulator with output )-100 cos(2(1000)r+(0) The modulator operates with fa = 8 and has the input message signal The modulator is followed by a bandpass filter with a...
(14%) 6. Consider an FM modulator with output )-100 cos(2(1000)r+(0) The modulator operates with fa = 8 and has the input message signal The modulator is followed by a bandpass filter with a a bandwidth of 56HZ, as shown in the following figure. Determine the power ratio and the power at the fiter oput center frequency of 1000HZ and Bandpass filter PM Output Center 1000 Hz Bandwidth 56 Hz mt-5 cos 2(8)r modulator -1000 Hz (a) FM system 39.1 39.1365...
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...
Figure 2.4 shows a block diagram that consists of Device A with a transfer function of Vo1(t) = 1 + vi(t)2 and a Band P...
Figure 2.4 shows a block diagram that consists of Device A with a transfer function of Vo1(t) = 1 + vi(t)2 and a Band Pass Filter that has a cutoff frequency of 6 kHz and 12 kHz. The input signal to the device is a 8 V sinusoidal signal Amplitude 8V Vot(t) Band Pass Device A Vo2(t) Time Vo1(t) 1vi(t) Filter 0.2ms Input signal, vi(t) Fiqure 2.4 State the expression of the input signal, vi(t) given that the signal is...
part C: block and circuit diagram* - ] 24 Diodes 1] 3X Low pass filter, Blw=8:5KHZ,...
part C: block and circuit diagram*
- ] 24 Diodes 1] 3X Low pass filter, Blw=8:5KHZ, HkHz, 98H2. 3] 2x Bend pass filter o fc = 600kHz, Blw= 8kHz fc = 800kHz, Blw= 10k.Ha 4 Nonlinear device : ylt)=08244(+) 6] Unlimited number capacitors 63 1x local osc. gererates frequancy range from 150kHz → 270kHz Aunlimited number of resistors and transforms a) Design AM modulator and Demodulator to transmit auchio signal 6) Very verify your design by writing all expressions of...
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...
DO NOT SOLVE THE QUESTION! THAT IS NOT WHAT I AM ASKING. THIS IS THE SECOND...
DO NOT SOLVE THE QUESTION! THAT IS NOT WHAT I AM ASKING.
THIS IS THE SECOND TIME I AM POSTING THIS Q BECAUSE THEY DID NOT
ANSWER MY Q.
I just want to know for 1a, answer is a bandpass
filter.
Can a LOW PASS FILTER also work?
You are asked to design a DSB-SC modulator to generate a modulated signal km(t) cos(w m(t) is a signal bandlimited to B Hz. Figure 1 shows a DSB-SC modulator available in the...
#2 The following figure shows the block diagram of an AM modulator. Nonlinear s(t) devicefilter The nonlinear device has an input-output characteristic of the form y0)-a x(0)+bx() where a and b are constants. Assume that the message signal is m)-A, cos(2rf.1) and (a) Determine the signal y). (b) Determine the AM signal s() (c) What kind of the filter is required in the above figure? (d) What is the amplitude sensitivity of this AM signal.
[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...
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...
The figure below shows the block diagram of a two-stage SSB modulator. The input signal / consists of a voice signal occupying the frequency of 3.4 KHz. The oscillator frequencies are Si=100 KHz and 2-10 MHz (6) vo Product Modulator Product Modulator BPF Passes USB only BPF Passes USB only A, cos(2.781) A, cos( 21) Specify the sidebands of all the modulated signals appearing in this system. {, vo), 20). 0),
(14%) 6. Consider an FM modulator with output )-100 cos(2(1000)r+(0) The modulator operates with fa = 8 and has the input message signal The modulator is followed by a bandpass filter with a a bandwidth of 56HZ, as shown in the following figure. Determine the power ratio and the power at the fiter oput center frequency of 1000HZ and Bandpass filter PM Output Center 1000 Hz Bandwidth 56 Hz mt-5 cos 2(8)r modulator -1000 Hz (a) FM system 39.1 39.1365...
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...
Figure 2.4 shows a block diagram that consists of Device A with a transfer function of Vo1(t) = 1 + vi(t)2 and a Band Pass Filter that has a cutoff frequency of 6 kHz and 12 kHz. The input signal to the device is a 8 V sinusoidal signal Amplitude 8V Vot(t) Band Pass Device A Vo2(t) Time Vo1(t) 1vi(t) Filter 0.2ms Input signal, vi(t) Fiqure 2.4 State the expression of the input signal, vi(t) given that the signal is...
part C: block and circuit diagram*
- ] 24 Diodes 1] 3X Low pass filter, Blw=8:5KHZ, HkHz, 98H2. 3] 2x Bend pass filter o fc = 600kHz, Blw= 8kHz fc = 800kHz, Blw= 10k.Ha 4 Nonlinear device : ylt)=08244(+) 6] Unlimited number capacitors 63 1x local osc. gererates frequancy range from 150kHz → 270kHz Aunlimited number of resistors and transforms a) Design AM modulator and Demodulator to transmit auchio signal 6) Very verify your design by writing all expressions of...
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...
DO NOT SOLVE THE QUESTION! THAT IS NOT WHAT I AM ASKING.
THIS IS THE SECOND TIME I AM POSTING THIS Q BECAUSE THEY DID NOT
ANSWER MY Q.
I just want to know for 1a, answer is a bandpass
filter.
Can a LOW PASS FILTER also work?
You are asked to design a DSB-SC modulator to generate a modulated signal km(t) cos(w m(t) is a signal bandlimited to B Hz. Figure 1 shows a DSB-SC modulator available in the...
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