Author:
Christine Farr

http://www.devrygenius.com/product/ecet-497-week-8-final-exam

1. Find the inverse Laplace transform of:

2. The inverse Laplace transform of 2/(s 2 + 4) is:

3. Given the circuit below, the expression for Vo(s)/Vin(s) is:

4. The inverse Laplace transform of a system with the response given by: H(s) = would be:

5. Frequencies from 0 to in the s plane on the axis, whereis the sampling frequency, correspond to:

6. What x(n) is described by the z domain function X(z) below?

7. 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]

8. For a system described by the following difference equation:

Which expression describes the response, , of h(n) to a unit step function?

9. 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):">

10. Which of the following difference equations represents an FIR (nonrecursive) filter?

11. Consider the pole-zero plot of a filter as given below. This filter is:

12. The following filter is:

y[n] – 3y[n-1] + 5y[n-2] = x[n] + 2x[n-2] – 3x[n-4] (Filter diff. eq.)

13. From the pole-zero plot given below, the numerator polynomial in the transfer function is which of the following (assume the transfer function polynomials have been put instandard form):

14. Given the transfer function, what type of response does this represent?

15. For a continuous-time second order lowpass system with a and an radians per second, write an s-domain transfer function that describes this system.

16. The system is:

17. For the s-plane plot below, what type of frequency response behavior would be expected?

18. For a Bode approximation of a transfer function H(s) described by:

19. For the s-plane plot below, what type of frequency response behavior would be expected?

20. Consider an FIR filter with the impulse response shown below. Does this filter have a linear phase response?

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