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Problem 4: For a digital baseband modulated signal with bit duration of 1 ms, the signal...
Consider baseband modulation, with each bit of duration Th. The pulse shape is p(t) = II(t/Tb)....
Consider baseband modulation, with each bit of duration Th. The pulse shape is p(t) = II(t/Tb). The PSDs for the bipolar, on-off, and polar signaling are shown in the figure below. Identify what curve (labeled a -c) corresponds what line code. 1 0.9 0.8 0.7 (a) 0.6 Amplitude 0.5 0.4 0.3 0.2 0.1 0 -2 -1.5 -1 -0.5 0 0.5 1.5 2 f/ To (Hz) Screen Shot 2018-04-21 at 2.29.09 PM.png (a) (the red line) = PSD for polar signaling...
7. (5 Points) In a Polar NRZ format, a) complete pulse duration b) O half pulse...
7. (5 Points) In a Polar NRZ format, a) complete pulse duration b) O half pulse duration c) O 1 is transmitted by a positive pulse and O is transmitted as a negative pulse d) 1 is transmitted by a positive pulse and O is transmitted as a zero e) None of the mentioned EXPLANATION: 8. (5 Points) QAM modulation scheme where each symbol consit of a) 4 bits b) 2 bits c) O 1 bit d) IM the number...
(a) Plot the digital signal corresponding to the sequence "11010" with a transmission rate (RA) equals...
(a) Plot the digital signal corresponding to the sequence "11010" with a transmission rate (RA) equals 1 Mbps using the following line codes: -On-Off (uni-polar) Non-Return-to-Zero (NRZ) with a rectangular pulse p(t) = A rect() -Polar Return-to-Zero (RZ) with a rectangular pulse p(t) = A rect 650) -AMI (Bipolar) (NRZ) with a rectangular pulse p(t) = A rect (b) Determine the null-based (zero-crossing) essential bandwidth and the average power for the line codes used above. (c) Determine the minimum bandwidth...
Consider additive white Gaussian noise with a double-sided noise power spectral density (PSD) 12-90 dBm/Hz 1E-12 W/Hz....
Consider additive white Gaussian noise with a double-sided noise power spectral density (PSD) 12-90 dBm/Hz 1E-12 W/Hz. This noise corrupts a baseband polar NRZ signal with rectangular pulses, like that 1 mV and the pulse duration is Tb such that the symbol rate is Rb 1/Tb. Since this is binary signaling, the symbol rate equals the bit rate of the incoming baseband pulse train: B Rt. The signal is then sampled at the center of the noisy shown in the...
A Pulse Amplitude Modulated (PAM) signal is generated by naturally sampling a triangular wave of amplitude 3 volt peak and frequency 1 KHz as shown in Figure 4 by a pulse train of frequency 4 kHz wit...
A Pulse Amplitude Modulated (PAM) signal is generated by naturally sampling a triangular wave of amplitude 3 volt peak and frequency 1 KHz as shown in Figure 4 by a pulse train of frequency 4 kHz with a pulse width of 0.025 ms. Draw the sampled waveform Message signal 3V 1 ms tms 3V-- (9 Marks) Figure 4
A Pulse Amplitude Modulated (PAM) signal is generated by naturally sampling a triangular wave of amplitude 3 volt peak and frequency 1...
When a baseband signal m(t) = cos(1000t)cos(3000t) is AM modulated using a carrier cos(10,000t), a) Find the...
When a baseband signal m(t) = cos(1000t)cos(3000t) is AM modulated using a carrier cos(10,000t), a) Find the frequency components in the baseband signals and in the AM signal. [2] b) Sketch the spectrum, carefully label the graph. c) Find the power efficiency, n. [1] [1]
A bipolar baseband binary signal has rectangular pulse level of +2 V or -2 V and...
A bipolar baseband binary signal has rectangular pulse level of +2 V or -2 V and bit duration of T. Additive white Gaussian noise with power spectral density No/2-10" Watts/z is added to it. Find the maximum bit rate that can be transmitted with a bit error probability of P 1?? using the following table of the Q function. Note: pa o 2E 2.33.1 374.2 0.01 0.0010.0001 0.00001 Q(x)
KS31603 SULIT/CONFIDENTIAL QUESTION 4 (20 marks) (a) A message signal has a peak voltage of 1V...
KS31603 SULIT/CONFIDENTIAL QUESTION 4 (20 marks) (a) A message signal has a peak voltage of 1V and its average power is 125 mW. Design a PCM system (find minimum value of R of the R bit A/D) with uniform quantization to achieve at least a signal to quantization noise ratio of 36 dB. What is the signal to quantization noise ratio obtained in your design? [6 marks] (b) If the signal is sampled at 9kHz in 4(a), what is the...
Problem No. 1: Let us consider that a baseband message signal m(t)=4cos(2000xt) has to be transmitted...
Problem No. 1: Let us consider that a baseband message signal m(t)=4cos(2000xt) has to be transmitted from a location 'A' to its destination 'B' using a carrier signal given by c(t)=2cos(10000#t). The signal s() m(t)c(i) is the modulated signal which will be transmitted. Consider that the signal is transmitted through a noiseless channel and received at the receiver at location 'B' as the signal s(t). Based on this information, perform the following tasks. 1. Find, sketch and label the spectrum...
1. Find a binary representation of the last two digits of your student ID number (which...
1. Find a binary representation of the last two digits of your student ID number (which are : 22), to obtain a sequence of 8 bits. Consider polar mapping with amplitudes ±a. Using an NRZ pulse shape of duration T seconds, and the 8-bit sequence above, sketch carefully or plot the following waveforms: (a) The transmitted signal s(t) (b) The response ycorr(t) to s(t) of the correlator with respect to s(t) (c) The response yMF(t) t s(t) of the matched...
Consider baseband modulation, with each bit of duration Th. The pulse shape is p(t) = II(t/Tb). The PSDs for the bipolar, on-off, and polar signaling are shown in the figure below. Identify what curve (labeled a -c) corresponds what line code. 1 0.9 0.8 0.7 (a) 0.6 Amplitude 0.5 0.4 0.3 0.2 0.1 0 -2 -1.5 -1 -0.5 0 0.5 1.5 2 f/ To (Hz) Screen Shot 2018-04-21 at 2.29.09 PM.png (a) (the red line) = PSD for polar signaling...
7. (5 Points) In a Polar NRZ format, a) complete pulse duration b) O half pulse duration c) O 1 is transmitted by a positive pulse and O is transmitted as a negative pulse d) 1 is transmitted by a positive pulse and O is transmitted as a zero e) None of the mentioned EXPLANATION: 8. (5 Points) QAM modulation scheme where each symbol consit of a) 4 bits b) 2 bits c) O 1 bit d) IM the number...
(a) Plot the digital signal corresponding to the sequence "11010" with a transmission rate (RA) equals 1 Mbps using the following line codes: -On-Off (uni-polar) Non-Return-to-Zero (NRZ) with a rectangular pulse p(t) = A rect() -Polar Return-to-Zero (RZ) with a rectangular pulse p(t) = A rect 650) -AMI (Bipolar) (NRZ) with a rectangular pulse p(t) = A rect (b) Determine the null-based (zero-crossing) essential bandwidth and the average power for the line codes used above. (c) Determine the minimum bandwidth...
Consider additive white Gaussian noise with a double-sided noise power spectral density (PSD) 12-90 dBm/Hz 1E-12 W/Hz. This noise corrupts a baseband polar NRZ signal with rectangular pulses, like that 1 mV and the pulse duration is Tb such that the symbol rate is Rb 1/Tb. Since this is binary signaling, the symbol rate equals the bit rate of the incoming baseband pulse train: B Rt. The signal is then sampled at the center of the noisy shown in the...
A Pulse Amplitude Modulated (PAM) signal is generated by naturally sampling a triangular wave of amplitude 3 volt peak and frequency 1 KHz as shown in Figure 4 by a pulse train of frequency 4 kHz with a pulse width of 0.025 ms. Draw the sampled waveform Message signal 3V 1 ms tms 3V-- (9 Marks) Figure 4
A Pulse Amplitude Modulated (PAM) signal is generated by naturally sampling a triangular wave of amplitude 3 volt peak and frequency 1...
When a baseband signal m(t) = cos(1000t)cos(3000t) is AM modulated using a carrier cos(10,000t), a) Find the frequency components in the baseband signals and in the AM signal. [2] b) Sketch the spectrum, carefully label the graph. c) Find the power efficiency, n. [1] [1]
A bipolar baseband binary signal has rectangular pulse level of +2 V or -2 V and bit duration of T. Additive white Gaussian noise with power spectral density No/2-10" Watts/z is added to it. Find the maximum bit rate that can be transmitted with a bit error probability of P 1?? using the following table of the Q function. Note: pa o 2E 2.33.1 374.2 0.01 0.0010.0001 0.00001 Q(x)
KS31603 SULIT/CONFIDENTIAL QUESTION 4 (20 marks) (a) A message signal has a peak voltage of 1V and its average power is 125 mW. Design a PCM system (find minimum value of R of the R bit A/D) with uniform quantization to achieve at least a signal to quantization noise ratio of 36 dB. What is the signal to quantization noise ratio obtained in your design? [6 marks] (b) If the signal is sampled at 9kHz in 4(a), what is the...
Problem No. 1: Let us consider that a baseband message signal m(t)=4cos(2000xt) has to be transmitted from a location 'A' to its destination 'B' using a carrier signal given by c(t)=2cos(10000#t). The signal s() m(t)c(i) is the modulated signal which will be transmitted. Consider that the signal is transmitted through a noiseless channel and received at the receiver at location 'B' as the signal s(t). Based on this information, perform the following tasks. 1. Find, sketch and label the spectrum...
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