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Problem 2. Based on the following block diagram answer the following questions: MØ mo) + b(0)...
Problem 2 120 pointsl: For the multiplexing system shown in the figure M1(o) MiC) -5000 M2(0) m20) 2 cos 20,000 0 5000 0) 2 cos 10,000 Sketch signal spectra at points a, b, and c. a. b. What ust be t...
Problem 2 120 pointsl: For the multiplexing system shown in the figure M1(o) MiC) -5000 M2(0) m20) 2 cos 20,000 0 5000 0) 2 cos 10,000 Sketch signal spectra at points a, b, and c. a. b. What ust be the bandwidth of the channel in rad/sec? (i.e. what is the total bandwidth at point c. c. Design a coherent receiver to recover signals m() and m() from the modulated signal at point (In other words, sketch the block diagram...
Two signals m1(t) and m2(t), both band-limited to 5000 Hz, are to be transmitted simultaneously over...
Two signals m1(t) and m2(t), both band-limited to 5000 Hz, are
to be transmitted simultaneously over a channel by the multiplexing
scheme shown in the following figure.The signal at point b is the
multiplexed signal, which now modulates a carrier of frequency
20,000 Hz. The modulated signal at point c is transmitted over a
channel.
4. [20 points] Two signals m(t) and m-(t), both band-limited to 5000 Hz, are to be transmitted simultaneously over a channel by the multiplexing scheme...
Problem 3: Consider the following transmission system: m, (t) 2 cos 850 m, (t) z(t) 2...
Problem 3: Consider the following transmission system: m, (t) 2 cos 850 m, (t) z(t) 2 cos 2000 m, (t) 2cos 500t M, (0) М,(о) м,(о) 300 -150 150 -300 -200 200 1. Sketch the signal spectra of x (t ) and z (t ) 2. What must be the bandwidth of the channel? 3. Design a receiver to recover the signals mi(t), m2t), and m,(t) from the modulated signal z (t ).
Problem 3: Consider the following transmission system:...
7. [20 points] Two signals mi(t) and m2(t) shown in the figure below have to be transmitted simul...
7. [20 points] Two signals mi(t) and m2(t) shown in the figure below have to be transmitted simul taneously over a channel by multiplexing. The signal at point b is the multiplexed signal, which modulates a carrier of frequency 20 kHz. The modulated signal at point c is then transmitted over the channel. (a) Sketch the spectra of the signals at points a, b and e An Mar) 42 2 cos(20, 000mt) (b) What must be the bandwidth of the...
Problem 3) Design a Double-Side-Band (DSB) based transmitter and receiver (find minimum bandwidth requirement and draw the block diagrams) to send and fully recover 10 human-voice type signals wi...
Problem 3) Design a Double-Side-Band (DSB) based transmitter and receiver (find minimum bandwidth requirement and draw the block diagrams) to send and fully recover 10 human-voice type signals with each signal having the bandwidth of 5kHz. Note that the receiver needs at least 3kHz of separation between each DSB signal for full recovery and you are limited to use AM radio frequency spectrum of 540 to 1600 kHz.
Problem 3) Design a Double-Side-Band (DSB) based transmitter and receiver (find minimum...
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...
Question 4 (35 points). Two message signals, ?1 (?) = 200??(100??) cos(103πt) volts and ?2 (?)...
Question 4 (35 points). Two message signals, ?1 (?) =
200??(100??) cos(103πt) volts and ?2 (?) = 900??2 (450??)
cos(103πt) volts, are required to be combined and then transmitted
over a channel around 2 MHz using amplitude double-side modulation.
We assume that the channel is ideal with no delay and no
attenuation. Design a system consisting of mixers, filters, etc. to
transmit and restore perfectly these two signals (i.e. ?1 (?) and
?2 (?)) at the receiving side after the...
5. Consider the following message signal: m(t) -2 .3 10 Assume that the carrier frequency is f ar...
5. Consider the following message signal: m(t) -2 .3 10 Assume that the carrier frequency is f are kf = 105, kp-25 respectively. 108 Hz, and frequency and phase deviation constants Find the maximum and minimum frequency deviation for FM, and sketch the FM wave for a duration of 103 seconds shown in the above figure (5 points). a. b. Find the maximum and minimum frequency deviation for PM, sketch the PM wave for a duration of 103 seconds shown...
Question 1 In the shown block diagram, the missing block is an integrator m(1) SIA True...
Question 1 In the shown block diagram, the missing block is an integrator m(1) SIA True False AA Moving to another question will save this respo Question 2 The narrowband FM signal is expressed as: A(t) cos {2 11 ft+tan- '[kfa(t)}} True False Question 3 Given the message signal m(t) with peak value 2 and carrier signal 5 cos (108 11 t). If ky = x10, the value of (min equals 50.1 MHz O True False Question 4 The following...
Problem 4 A base-band digital communication system using binary signals shown in the Figure for transmission...
Problem 4 A base-band digital communication system using binary signals shown in the Figure for transmission of two equiprob able messages. The transmitted signal is s(t), i e {1,2} and the recieved signal is r(t) s(t)+n(t), where nit) is the AWGN with power-spectral density No/2. 1. In a block diagram, give the precise specifications of the optimal receiver. What are the characteristics of the matched filter and the sampler and decision device? 2. Find the error probability of the optimal...
Problem 2 120 pointsl: For the multiplexing system shown in the figure M1(o) MiC) -5000 M2(0) m20) 2 cos 20,000 0 5000 0) 2 cos 10,000 Sketch signal spectra at points a, b, and c. a. b. What ust be the bandwidth of the channel in rad/sec? (i.e. what is the total bandwidth at point c. c. Design a coherent receiver to recover signals m() and m() from the modulated signal at point (In other words, sketch the block diagram...
Two signals m1(t) and m2(t), both band-limited to 5000 Hz, are
to be transmitted simultaneously over a channel by the multiplexing
scheme shown in the following figure.The signal at point b is the
multiplexed signal, which now modulates a carrier of frequency
20,000 Hz. The modulated signal at point c is transmitted over a
channel.
4. [20 points] Two signals m(t) and m-(t), both band-limited to 5000 Hz, are to be transmitted simultaneously over a channel by the multiplexing scheme...
Problem 3: Consider the following transmission system: m, (t) 2 cos 850 m, (t) z(t) 2 cos 2000 m, (t) 2cos 500t M, (0) М,(о) м,(о) 300 -150 150 -300 -200 200 1. Sketch the signal spectra of x (t ) and z (t ) 2. What must be the bandwidth of the channel? 3. Design a receiver to recover the signals mi(t), m2t), and m,(t) from the modulated signal z (t ).
Problem 3: Consider the following transmission system:...
7. [20 points] Two signals mi(t) and m2(t) shown in the figure below have to be transmitted simul taneously over a channel by multiplexing. The signal at point b is the multiplexed signal, which modulates a carrier of frequency 20 kHz. The modulated signal at point c is then transmitted over the channel. (a) Sketch the spectra of the signals at points a, b and e An Mar) 42 2 cos(20, 000mt) (b) What must be the bandwidth of the...
Problem 3) Design a Double-Side-Band (DSB) based transmitter and receiver (find minimum bandwidth requirement and draw the block diagrams) to send and fully recover 10 human-voice type signals with each signal having the bandwidth of 5kHz. Note that the receiver needs at least 3kHz of separation between each DSB signal for full recovery and you are limited to use AM radio frequency spectrum of 540 to 1600 kHz.
Problem 3) Design a Double-Side-Band (DSB) based transmitter and receiver (find minimum...
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...
Question 4 (35 points). Two message signals, ?1 (?) =
200??(100??) cos(103πt) volts and ?2 (?) = 900??2 (450??)
cos(103πt) volts, are required to be combined and then transmitted
over a channel around 2 MHz using amplitude double-side modulation.
We assume that the channel is ideal with no delay and no
attenuation. Design a system consisting of mixers, filters, etc. to
transmit and restore perfectly these two signals (i.e. ?1 (?) and
?2 (?)) at the receiving side after the...
5. Consider the following message signal: m(t) -2 .3 10 Assume that the carrier frequency is f are kf = 105, kp-25 respectively. 108 Hz, and frequency and phase deviation constants Find the maximum and minimum frequency deviation for FM, and sketch the FM wave for a duration of 103 seconds shown in the above figure (5 points). a. b. Find the maximum and minimum frequency deviation for PM, sketch the PM wave for a duration of 103 seconds shown...
Question 1 In the shown block diagram, the missing block is an integrator m(1) SIA True False AA Moving to another question will save this respo Question 2 The narrowband FM signal is expressed as: A(t) cos {2 11 ft+tan- '[kfa(t)}} True False Question 3 Given the message signal m(t) with peak value 2 and carrier signal 5 cos (108 11 t). If ky = x10, the value of (min equals 50.1 MHz O True False Question 4 The following...
Problem 4 A base-band digital communication system using binary signals shown in the Figure for transmission of two equiprob able messages. The transmitted signal is s(t), i e {1,2} and the recieved signal is r(t) s(t)+n(t), where nit) is the AWGN with power-spectral density No/2. 1. In a block diagram, give the precise specifications of the optimal receiver. What are the characteristics of the matched filter and the sampler and decision device? 2. Find the error probability of the optimal...
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