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 ?
Homework Answers
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2. For a lowpass signal with a bandwidth of 4000 Hz, what is the
maximum 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
Recall the problem from lecture iavolving an information signal betweea (-100, 100) Iz and a noise...
Recall the problem from lecture iavolving an information signal betweea (-100, 100) Iz and a noise signal with positive spectrum between (500,700) Hz and negative spectrum between (-700-500) Hz. a) Suppose we want the reconstructed signal to equal the information signal. Suppose also that we would like to VIOLATE the Syquist criterion. If we can use a reconstruction ilter different than the ideal lowpass filter considered ia lecture, then find the minimum sampling frequency which violates Nyquist but still gives...
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,...
3. (a) Consider the signal xc(t)-sin(2π(40)t). How fast must xe(t) be sanpled to avoid aliasing? ...
3. (a) Consider the signal xc(t)-sin(2π(40)t). How fast must xe(t) be sanpled to avoid aliasing? Determine the Nyquist rate (the frequency which the sampling rate fs must exceed) for ae(t) (b) Consider processing the signal xe(t) (from part (a)) using the system shown below: Conversion to a sequence Conversion to an impulse train Ideal Reconstruction Filter Hr(ju) p (t) ур y(t) The sampling period for this system is T-1/50 seconds. The DT system H(ei2) is an ideal lowpass filter with...
A Digital Signal Processing system is taking at its input the following analogue signal s(t); s(t)...
A Digital Signal Processing system is taking at its input the following analogue signal s(t); s(t) - 20+ 20 cos(24xt)cos(xt), Where time t is expressed in ms. Part 1 - Setting the sampling frequency: (11 Marks) As a start, the system comprises only a sampler and an ideal analogue reconstructor as follows: w(t) s(t) Sampler Analogue Reconstructor s,(t) Figure a) Find the frequency spectrum S(t) of s(t) and deduce its bandwidth. You may directly use the table provided at the...
number 2 ECE 300 Continuous-Time Signals and Systems H(jø π/2 Plot the spectrum Z (jø) of the filtered input signal z()...
number 2
ECE 300 Continuous-Time Signals and Systems H(jø π/2 Plot the spectrum Z (jø) of the filtered input signal z(), the spectrum Z, (jo) of the sampled signal z.(t), and the spectrum Y(ja) of the reconstructed signal y(t). Show clearly how the output spectrum Y (ja) differs from the original spectrum G(jo) C. Which system, A or B, produces less distortion between the input g(t) and the output y(4) or ()? Explain. You can measure distortion by finding the...
Design a suitable second-order Bessel filter to attenuate the 50 Hz interfering signal to 1/2 LSB for the ATmega328 anal...
Design a suitable second-order Bessel filter to attenuate the 50 Hz interfering signal to 1/2 LSB for the ATmega328 analog-to-digital converter. Assume that the unattenuated noise appears with an amplitude of 1 V. If you wanted to achieve the same level of attenuation with just a simple passive (RC) filter, what value of capacitor would be required for a resistance R=100 kΩ. Determine the corner frequency.
QUESTION 1 Characterise the following systems as being either causal on anticausal: yn)-ePyn-1)+u...
QUESTION 1 Characterise the following systems as being either causal on anticausal: yn)-ePyn-1)+u/n), where u/h) is the unit step and B is an arbitrary constant (B>0), Take y-1)-0. Answer with either causal or 'anticausal only QUESTION 2 For the following system: yn) -yn-1Va -x(n), for a 0.9, find y(10), assuming y(n) - o, for ns -1.Hint: find a closed form for yin) and use it to find the required output sample. (xin)-1 for n>-0) QUESTION 3 A filter has the...
Determine the period number of the ufk-4 cos(K+TT/2) discrete time signal! Select one: O A. 34 O ...
Determine the period number of the ufk-4 cos(K+TT/2) discrete time signal! Select one: O A. 34 O D. Non periodic O E. 34/3 A coil (L 5 mH) is parallel connected to two serially connected resistors (6 kΩ and 4 k2). Calculate the time constant of the above two-pole! Select one: Ο Α.0.5s OC. 5 s Ο D. 0.5 με Ο Ε.0.5 Ms Consider the following sequential network: Z2 Di Ct ㄍ洼 S2 Q2 CLK Choose which function does this...
1. According to the paper, what does lactate dehydrogenase (LDH) do and what does it allow...
1. According to the paper, what does lactate dehydrogenase
(LDH) do and what does it allow to happen within the myofiber? (5
points)
2. According to the paper, what is the major disadvantage of
relying on glycolysis during high-intensity exercise? (5
points)
3. Using Figure 1 in the paper, briefly describe the different
sources of ATP production at 50% versus 90% AND explain whether you
believe this depiction of ATP production applies to a Type IIX
myofiber in a human....
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
Recall the problem from lecture iavolving an information signal betweea (-100, 100) Iz and a noise signal with positive spectrum between (500,700) Hz and negative spectrum between (-700-500) Hz. a) Suppose we want the reconstructed signal to equal the information signal. Suppose also that we would like to VIOLATE the Syquist criterion. If we can use a reconstruction ilter different than the ideal lowpass filter considered ia lecture, then find the minimum sampling frequency which violates Nyquist but still gives...
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,...
3. (a) Consider the signal xc(t)-sin(2π(40)t). How fast must xe(t) be sanpled to avoid aliasing? Determine the Nyquist rate (the frequency which the sampling rate fs must exceed) for ae(t) (b) Consider processing the signal xe(t) (from part (a)) using the system shown below: Conversion to a sequence Conversion to an impulse train Ideal Reconstruction Filter Hr(ju) p (t) ур y(t) The sampling period for this system is T-1/50 seconds. The DT system H(ei2) is an ideal lowpass filter with...
A Digital Signal Processing system is taking at its input the following analogue signal s(t); s(t) - 20+ 20 cos(24xt)cos(xt), Where time t is expressed in ms. Part 1 - Setting the sampling frequency: (11 Marks) As a start, the system comprises only a sampler and an ideal analogue reconstructor as follows: w(t) s(t) Sampler Analogue Reconstructor s,(t) Figure a) Find the frequency spectrum S(t) of s(t) and deduce its bandwidth. You may directly use the table provided at the...
number 2
ECE 300 Continuous-Time Signals and Systems H(jø π/2 Plot the spectrum Z (jø) of the filtered input signal z(), the spectrum Z, (jo) of the sampled signal z.(t), and the spectrum Y(ja) of the reconstructed signal y(t). Show clearly how the output spectrum Y (ja) differs from the original spectrum G(jo) C. Which system, A or B, produces less distortion between the input g(t) and the output y(4) or ()? Explain. You can measure distortion by finding the...
QUESTION 1 Characterise the following systems as being either causal on anticausal: yn)-ePyn-1)+u/n), where u/h) is the unit step and B is an arbitrary constant (B>0), Take y-1)-0. Answer with either causal or 'anticausal only QUESTION 2 For the following system: yn) -yn-1Va -x(n), for a 0.9, find y(10), assuming y(n) - o, for ns -1.Hint: find a closed form for yin) and use it to find the required output sample. (xin)-1 for n>-0) QUESTION 3 A filter has the...
Determine the period number of the ufk-4 cos(K+TT/2) discrete time signal! Select one: O A. 34 O D. Non periodic O E. 34/3 A coil (L 5 mH) is parallel connected to two serially connected resistors (6 kΩ and 4 k2). Calculate the time constant of the above two-pole! Select one: Ο Α.0.5s OC. 5 s Ο D. 0.5 με Ο Ε.0.5 Ms Consider the following sequential network: Z2 Di Ct ㄍ洼 S2 Q2 CLK Choose which function does this...
1. According to the paper, what does lactate dehydrogenase
(LDH) do and what does it allow to happen within the myofiber? (5
points)
2. According to the paper, what is the major disadvantage of
relying on glycolysis during high-intensity exercise? (5
points)
3. Using Figure 1 in the paper, briefly describe the different
sources of ATP production at 50% versus 90% AND explain whether you
believe this depiction of ATP production applies to a Type IIX
myofiber in a human....
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