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In a single-integration DM system, the voice signal is sampled at a rate of 64 kHz,...
A video signal has bandwidth of 4 MHz. This signal is sampled, quantized, and binary encoded...
A video signal has bandwidth of 4 MHz. This signal is sampled, quantized, and binary encoded using the PCM technique. The video signal amplitude is uniformly distributed in the range (-2, 2). If the signal is sampled at the Nyquist rate and quantized into 512 levels: (a) Determine the bit rate. (b) Determine the signal-to-quantization-noise ratio. (©) If the signal-to-quantization-noise ratio must be increased by a factor of 16, how you can achieve that? Will this affect the bit rate?...
3.8 Twenty-four voice signals are sampled uniformly and then time-division multiplexed n sampling operation uses flat-top...
3.8 Twenty-four voice signals are sampled uniformly and then time-division multiplexed n sampling operation uses flat-top samples with 1 us duration. The multiplexing oper includes provision for synchronization by adding an extra pulse of sufficient ampli and also 1 us duration. The highest frequency component of each voice signal is 3.4 (a) Assuming a sampling rate of 8 kHz, calculate the spacing between successive pule of the multiplexed signal. (b) Repeat your calculation assuming the use of Nyquist rate sampling....
(b). Twenty-four voice signals are sampled uniformly and then time-division multiplexed. The sampling operation uses flat-top...
(b). Twenty-four voice signals are sampled uniformly and then time-division multiplexed. The sampling operation uses flat-top samples with lus duration. The multiplexing operation includes provision for synchronization by adding an extra pulse of sufficient amplitude and also 1 us duration. The highest frequency component of each voice signal is 3.4 kHz. (b.1) Assuming a sampling rate of 8 kHz, determine the spacing between successive pulses of the multiplexed signal. (b.2) Repeat your calculation assuming the use of Nyquist rate sampling.
Figure 1: PDF of X(t) 4. Signal X(t) has a bandwidth of 10 kHz, and its amplitude at any time i...
Please show all your working and steps and formular used. Thank
you
Figure 1: PDF of X(t) 4. Signal X(t) has a bandwidth of 10 kHz, and its amplitude at any time is a random variable whose PDF is showing in Figure 1. We want to transmit this signal using a uniform PCM system (a) Show that a (b) Determine the power in X(t) (c) What is the SQNR is decibels if a PCM system with 128 level is employed....
Assume that an analog audio voice-frequency (VF) telephone signal m(t) occupies a band from 300 Hz...
Assume that an analog audio voice-frequency (VF) telephone signal m(t) occupies a band from 300 Hz to 3000 Hz. The signal is to be converted to a PCM signal for transmission over a digital telephone system. The signal is sampled at a rate 33.3% higher than the Nyquist rate. The maximum acceptable quantizatiorn error is 2% of the peak amplitude of m(t). The quantized samples are binary coded. Find the minimum bandwidth B of a noiseless channel required to transmit...
(5) A PCM system encodes samples using an 8-bit ADC. In the case of peak signal...
(5) A PCM system encodes samples using an 8-bit ADC. In the case of peak signal amplitude, estimate the signal to quantization noise ratio in dB (6) The output SQNR of a 10-bit PCM was found to be insufficient at 30 dB. To achieve the desired SQNR of 42 dB, an increase to the number of quantization levels was needed. Determine the fractional increase in the transmission bandwidth required. (7) A signal x(t) band-limited to 3kHz is sampled at a...
5.2-1 A compact dise (CD) records audio signals digitlly by using PCM. Let the au bandwidth...
5.2-1 A compact dise (CD) records audio signals digitlly by using PCM. Let the au bandwidth be 15 kHz. (a) If the Nyquist samples are uniformly quantized into L 65,5 (b) If the audio signal has average power of 0.1 W and peak voltage of 1 V, find the resulting (c) Determine the number of binary digits per second (bit/s) required to encode the audico (d) For practical reasons discussed in the text, signals are sampled at a rate well...
8 8.6-4 For a DSB-SC system with a channel noise PSD of Sn() 10-12 and a baseband signal of bandw...
8 8.6-4 For a DSB-SC system with a channel noise PSD of Sn() 10-12 and a baseband signal of bandwidth 5 kHz, the receiver output SNR is required to be at least 47 dB. The receiver is as shown in Fig. 8.30. (a) What must be the signal power Si received at the receiver input? (b) What is the receiver output noise power No? (c) What is the minimum transmitted power Sr if the channel transfer function is He)10-3 over...
Exercise 6: Consider an audio signal with an amplitude that ranges over the interval [-10,10] and...
Communication systems theory:
Exercise 6: Consider an audio signal with an amplitude that ranges over the interval [-10,10] and with spectral components limited to the frequency band of 300 Hz to 3300 Hz. The signal is sampled at a rate of 8000 samples/second and used to generate a PCM signal. The signal-to-quantization- noise ratio (SQNR) is required to be maintained at 43.9 dB a) What is the minimum number of uniform quantization levels needed, and what is the minimum number...
Communication System Solve with ALL steps Please QUESTION 3 Briefly explain the following Analog Pulse Modulation...
Communication System
Solve with ALL steps Please
QUESTION 3 Briefly explain the following Analog Pulse Modulation (APM): (i) Pulse Amplitude Modulation (PAM) Pulse Width Modulation (PWM) (iii) Pulse Position Modulation (PPM) (2 marks) (2 marks) (2 marks) b) There are several digital modulations techniques used to modulate digital signal. For a binary data 10111011, sketch the output waveform if the following modulator is used: Amplitude Shift Keying (ASK) (2 marks) Frequency Shift Keying(FSK) (2 marks) (iii) Phase Shift Keying (PSK)...
A video signal has bandwidth of 4 MHz. This signal is sampled, quantized, and binary encoded using the PCM technique. The video signal amplitude is uniformly distributed in the range (-2, 2). If the signal is sampled at the Nyquist rate and quantized into 512 levels: (a) Determine the bit rate. (b) Determine the signal-to-quantization-noise ratio. (©) If the signal-to-quantization-noise ratio must be increased by a factor of 16, how you can achieve that? Will this affect the bit rate?...
3.8 Twenty-four voice signals are sampled uniformly and then time-division multiplexed n sampling operation uses flat-top samples with 1 us duration. The multiplexing oper includes provision for synchronization by adding an extra pulse of sufficient ampli and also 1 us duration. The highest frequency component of each voice signal is 3.4 (a) Assuming a sampling rate of 8 kHz, calculate the spacing between successive pule of the multiplexed signal. (b) Repeat your calculation assuming the use of Nyquist rate sampling....
(b). Twenty-four voice signals are sampled uniformly and then time-division multiplexed. The sampling operation uses flat-top samples with lus duration. The multiplexing operation includes provision for synchronization by adding an extra pulse of sufficient amplitude and also 1 us duration. The highest frequency component of each voice signal is 3.4 kHz. (b.1) Assuming a sampling rate of 8 kHz, determine the spacing between successive pulses of the multiplexed signal. (b.2) Repeat your calculation assuming the use of Nyquist rate sampling.
Please show all your working and steps and formular used. Thank
you
Figure 1: PDF of X(t) 4. Signal X(t) has a bandwidth of 10 kHz, and its amplitude at any time is a random variable whose PDF is showing in Figure 1. We want to transmit this signal using a uniform PCM system (a) Show that a (b) Determine the power in X(t) (c) What is the SQNR is decibels if a PCM system with 128 level is employed....
Assume that an analog audio voice-frequency (VF) telephone signal m(t) occupies a band from 300 Hz to 3000 Hz. The signal is to be converted to a PCM signal for transmission over a digital telephone system. The signal is sampled at a rate 33.3% higher than the Nyquist rate. The maximum acceptable quantizatiorn error is 2% of the peak amplitude of m(t). The quantized samples are binary coded. Find the minimum bandwidth B of a noiseless channel required to transmit...
(5) A PCM system encodes samples using an 8-bit ADC. In the case of peak signal amplitude, estimate the signal to quantization noise ratio in dB (6) The output SQNR of a 10-bit PCM was found to be insufficient at 30 dB. To achieve the desired SQNR of 42 dB, an increase to the number of quantization levels was needed. Determine the fractional increase in the transmission bandwidth required. (7) A signal x(t) band-limited to 3kHz is sampled at a...
5.2-1 A compact dise (CD) records audio signals digitlly by using PCM. Let the au bandwidth be 15 kHz. (a) If the Nyquist samples are uniformly quantized into L 65,5 (b) If the audio signal has average power of 0.1 W and peak voltage of 1 V, find the resulting (c) Determine the number of binary digits per second (bit/s) required to encode the audico (d) For practical reasons discussed in the text, signals are sampled at a rate well...
8 8.6-4 For a DSB-SC system with a channel noise PSD of Sn() 10-12 and a baseband signal of bandwidth 5 kHz, the receiver output SNR is required to be at least 47 dB. The receiver is as shown in Fig. 8.30. (a) What must be the signal power Si received at the receiver input? (b) What is the receiver output noise power No? (c) What is the minimum transmitted power Sr if the channel transfer function is He)10-3 over...
Communication systems theory:
Exercise 6: Consider an audio signal with an amplitude that ranges over the interval [-10,10] and with spectral components limited to the frequency band of 300 Hz to 3300 Hz. The signal is sampled at a rate of 8000 samples/second and used to generate a PCM signal. The signal-to-quantization- noise ratio (SQNR) is required to be maintained at 43.9 dB a) What is the minimum number of uniform quantization levels needed, and what is the minimum number...
Communication System
Solve with ALL steps Please
QUESTION 3 Briefly explain the following Analog Pulse Modulation (APM): (i) Pulse Amplitude Modulation (PAM) Pulse Width Modulation (PWM) (iii) Pulse Position Modulation (PPM) (2 marks) (2 marks) (2 marks) b) There are several digital modulations techniques used to modulate digital signal. For a binary data 10111011, sketch the output waveform if the following modulator is used: Amplitude Shift Keying (ASK) (2 marks) Frequency Shift Keying(FSK) (2 marks) (iii) Phase Shift Keying (PSK)...
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