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# Signal Processing Test - Attempt 2 complete solved questions with answers 2020

Signal Processing Test - Attempt 2 complete solved questions with answers 2020 Page 1 1. (TCO 3) What is the expression for the transform admittance for an uncharged capacitance of 0.2 F? (Points : 6) 2. (TCO 3) Given the circuit below, the expression for Vo(s)/Vin(s) is: (Points : 6) 3. (TCO 3) What is the expression for the transform impedance for an uncharged capacitance of 0.2 F? (Points : 6) 4. (TCO 3) Which of the following expressions is a z domain description of the difference equation described below? y[n] – 3y[n-1] + 5y[n-2] = x[n] + 2x[n-2] – 3x[n-4] (Points : 6) 5. (TCO 3) Multiplication by n in the discrete time domain corresponds to: (Points : 6) 6. (TCO 3) Frequencies from 0 to in the s plane on the axis, where is the sampling frequency, correspond to: (Points : 6) 7. (TCO 3) Consider the pole-zero plot of a filter as given below. This filter is: (Points : 6) 8. (TCO 3) A Bode Plot corresponds to a straight-line approximation of: (Points : 6) 9. (TCO 3) Suppose in the s-domain, the output of a system, is Y(s) when the input to the system is X(s). The transfer function would be: (Points : 6) 10. (TCO 3) Given the transfer function , what type of response does this represent? (Points : 6) 11. (TCO3) The following table represents values of the impulse response of a filter, h[n], and the values of an input signal, x[n]. Assume that the input signal starts at n=0; that is, all signal values are zero for n<0. Find the fifth output sample (y[n] for n=4): (Points : 6) Week 11 : Signal Processing Test - Attempt #2 Page 2 1. (TCO3) Consider the following frequency response of an analog system. This response would be typical of what type of filter? (Points : 6) 2. (TCO 3) Filter “order” is determined by: (Points : 6) 3. (TCO3) Which would be the best current scientific description of the way the human hearing system works? (Points : 6) 4. (TCO 3) Consider the figure below. The digital signal was produced by A-to-D converter operating at a sampling frequency of 200 Hz. A perfect D-to-A converter would turn the signal shown into a: (Points : 6) 5. (TCO 3) Linear-phase filters are desirable in many applications because: (Points : 6) 6. (TCO3) An A/D converter is sampling an analog signal at a frequency of 2 kHz over an interval of 20 ms. How many samples are produced? (Points : 6) 7. (TCO 3) Suppose the signal in the plot below was sample data sampling frequency of 1000 Hz. The spectrum of the digital signal produced by this sampling would have an image (i.e.,a copy) of the signal at: (Points : 6) 8. (TCO 3) Consider an FIR filter with the above impulse response. What is the group delay of the filter? (Points : 6) 9. (TCO 3) For a given filter order and a given amount of pass-band and stop-band ripple, which of the following filters would have the sharpest transition between the pass-band and stop-band? (Points : 6) 10. (TCO 3) For an analog filter the transfer function is H(s). The frequency response of an analog filter is the value of H(s): (Points : 6) 11. (TCO 3) Suppose the transfer function of an FIR filter is given by the equation below. (As written, this filter is not causal.) What characteristic does this filter have? (Points : 6) 12. (TCO 3) Since each consecutive toss of a coin is independent, what is the probability of getting heads on the first toss and tails on the second toss? (Points : 6) 13. (TCO 3) Three widgets are drawn randomly from a lot of 200, 10 of which are defective. What is the probability that the widgets drawn will be non-defective a) with replacement b) without replacement? (Points : 6) 14. (TCO 3) In probability, the notation: (Points : 6)

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