The frequency of typical telephone signal is from 300Hz to 3,400 Hz, find the required sampling...
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frequency of typical telephone signal is from 300Hz to 3,400 Hz,
find the required sampling...
For a lowpass signal with a bandwidth of 6000 Hz, what is the minimum sampling frequency...
For a lowpass signal with a bandwidth of 6000 Hz, what is the minimum sampling frequency for perfect reconstruction of the signal? What is the minimum required sampling frequency if a guard band of 2000 Hz is required? What is the minimum required sampling frequency and the value of K for perfect reconstruction if the nstruction filter has the following frequency response lfl 7000 K-Kino 7000, 0, H(f) = 7000 < lfl < 10000) otherwise
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...
2. For a lowpass signal with a bandwidth of 4000 Hz, what is the maximum sampling...
2. For a lowpass signal with a bandwidth of 4000 Hz, what is the
maximum sampling
frequency for perfect of a the signal? What is the minimum required
sampling frequency
if a guardband of 500 Hz is required ? If the reconstruction lter
has the frequency
response
(a) What is the minimum required sampling frequency and the value
of K for perfect
reconstruction ?
h of 4000 Hz, what is the maximum sampling for perfect of a the signal? What...
Consider a sampler which samples the continuous-time input signal x(t) at a sampling frequency fs =...
Consider a sampler which samples the continuous-time input signal x(t) at a sampling frequency fs = 8000 Hz and produces at its output a sampled discrete-time signal x$(t) = x(nTs), where To = 1/fs is the sampling period. If the sampled signal is passed through a unity-gain lowpass filter with cutoff frequency of fs/2, sketch the magnitude spectrum of the resulting signal for the following input signals: (a) x(t) = cos(6000nt). (b) x(t) = cos(12000nt). (c) x(t) = cos(18000nt).
Part A:- Synthesising a Discrete Signal using Matlab: Using a sampling frequency of 8000 Hz, determine...
Part A:- Synthesising a Discrete Signal using Matlab: Using a sampling frequency of 8000 Hz, determine the discrete signal, x[n] that is obtained from sampling a 1000 Hz sine wave, with a peak magnitude of 0.8. (that is, x(t)-0.8cos(2rtft)). Determine an equation for xin] in terms of 'n' and then create the signal in Matlab. (Remember in this case 'n' is your independent variable not t'.) Play the x[n] signal through the PC soundcard using the 'sound' command in Matlab....
Data communication Qs A signal has a bandwidth frequency of 150 Hz and the highest frequency...
Data communication Qs
A signal has a bandwidth frequency of 150 Hz and the highest frequency is 170 Hz. What is the lowest frequency of the signal? (just put the whole number. No decimal values. No units next to the number) A periodic signal completes one cycle in 0.04 second. What is the frequency? A sine wave completes 7200 cycles in one hour. What are its frequency and period? I: 50 Hz, II: 10 Hz, 0.1 seconds I: 25 Hz,...
Consider the signal y(t) = 10cos(30ft) +15cos(80nt). c) If a sampling frequency of 30 Hz is...
Consider the signal y(t) = 10cos(30ft) +15cos(80nt). c) If a sampling frequency of 30 Hz is used to sample y(t), the resulting discrete signal y(n) will also have two components, one from sampling 10 cos(30nt), the other from sampling 15cos(80ft). Calculate the frequencies of the two components in y(n) (10pts)
a. Consider the following signal xi(t)= cos(2aft) The signal is sampled with the sampling frequency Fs....
a. Consider the following signal xi(t)= cos(2aft) The signal is sampled with the sampling frequency Fs. Answer the following: for a given sampling frequency Fs, what is the range of f so that the continuous time signal has a unique sampled signal? What happens if f is outside this range? Show you result using a number of illustrative Matlab plots (with suitably chosen Fs and f, try for example (some of) F=0.1Fs, 0.2Fs,..., 2Fs – but don't include all plots...
3) Develop Matlab code to plots of chirp signal and its FFT (sampling frequency-500 Hz, duration:...
3) Develop Matlab code to plots of chirp signal and its FFT (sampling frequency-500 Hz, duration: 1 second, length of FFT 1024). Explain what chirp signal is and how it is using in industry
3) Develop Matlab code to plots of chirp signal and its FFT (sampling frequency-500 Hz, duration: 1 second, length of FFT 1024). Explain what chirp signal is and how it is using in industry
36. Sampling a low-pass signal. A signal x(t) = sin( 1,000.71) is sampled at the rate...
36. Sampling a low-pass signal. A signal x(t) = sin( 1,000.71) is sampled at the rate of F, and sent through a unity-gain ideal low-pass filter with the cutoff frequency at F,/2. Find and plot the Fourier transform of the reconstructed signal z(t) at filter's output if a. F=20 kHz b. Fs =800 Hz
For a lowpass signal with a bandwidth of 6000 Hz, what is the minimum sampling frequency for perfect reconstruction of the signal? What is the minimum required sampling frequency if a guard band of 2000 Hz is required? What is the minimum required sampling frequency and the value of K for perfect reconstruction if the nstruction filter has the following frequency response lfl 7000 K-Kino 7000, 0, H(f) = 7000 < lfl < 10000) otherwise
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...
2. For a lowpass signal with a bandwidth of 4000 Hz, what is the
maximum sampling
frequency for perfect of a the signal? What is the minimum required
sampling frequency
if a guardband of 500 Hz is required ? If the reconstruction lter
has the frequency
response
(a) What is the minimum required sampling frequency and the value
of K for perfect
reconstruction ?
h of 4000 Hz, what is the maximum sampling for perfect of a the signal? What...
Consider a sampler which samples the continuous-time input signal x(t) at a sampling frequency fs = 8000 Hz and produces at its output a sampled discrete-time signal x$(t) = x(nTs), where To = 1/fs is the sampling period. If the sampled signal is passed through a unity-gain lowpass filter with cutoff frequency of fs/2, sketch the magnitude spectrum of the resulting signal for the following input signals: (a) x(t) = cos(6000nt). (b) x(t) = cos(12000nt). (c) x(t) = cos(18000nt).
Part A:- Synthesising a Discrete Signal using Matlab: Using a sampling frequency of 8000 Hz, determine the discrete signal, x[n] that is obtained from sampling a 1000 Hz sine wave, with a peak magnitude of 0.8. (that is, x(t)-0.8cos(2rtft)). Determine an equation for xin] in terms of 'n' and then create the signal in Matlab. (Remember in this case 'n' is your independent variable not t'.) Play the x[n] signal through the PC soundcard using the 'sound' command in Matlab....
Data communication Qs
A signal has a bandwidth frequency of 150 Hz and the highest frequency is 170 Hz. What is the lowest frequency of the signal? (just put the whole number. No decimal values. No units next to the number) A periodic signal completes one cycle in 0.04 second. What is the frequency? A sine wave completes 7200 cycles in one hour. What are its frequency and period? I: 50 Hz, II: 10 Hz, 0.1 seconds I: 25 Hz,...
Consider the signal y(t) = 10cos(30ft) +15cos(80nt). c) If a sampling frequency of 30 Hz is used to sample y(t), the resulting discrete signal y(n) will also have two components, one from sampling 10 cos(30nt), the other from sampling 15cos(80ft). Calculate the frequencies of the two components in y(n) (10pts)
a. Consider the following signal xi(t)= cos(2aft) The signal is sampled with the sampling frequency Fs. Answer the following: for a given sampling frequency Fs, what is the range of f so that the continuous time signal has a unique sampled signal? What happens if f is outside this range? Show you result using a number of illustrative Matlab plots (with suitably chosen Fs and f, try for example (some of) F=0.1Fs, 0.2Fs,..., 2Fs – but don't include all plots...
3) Develop Matlab code to plots of chirp signal and its FFT (sampling frequency-500 Hz, duration: 1 second, length of FFT 1024). Explain what chirp signal is and how it is using in industry
3) Develop Matlab code to plots of chirp signal and its FFT (sampling frequency-500 Hz, duration: 1 second, length of FFT 1024). Explain what chirp signal is and how it is using in industry
36. Sampling a low-pass signal. A signal x(t) = sin( 1,000.71) is sampled at the rate of F, and sent through a unity-gain ideal low-pass filter with the cutoff frequency at F,/2. Find and plot the Fourier transform of the reconstructed signal z(t) at filter's output if a. F=20 kHz b. Fs =800 Hz
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