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Question Bank 2

The document is a question bank for a Digital Signal Processing course, covering various topics such as filter design, characteristics of analog and digital filters, and methods for converting analog filters to digital. It includes questions on Butterworth and Chebyshev filters, FIR and IIR filter realizations, windowing techniques, and specific filter design problems. The questions aim to assess understanding of concepts and practical applications in digital signal processing.

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Juju Jaki
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46 views2 pages

Question Bank 2

The document is a question bank for a Digital Signal Processing course, covering various topics such as filter design, characteristics of analog and digital filters, and methods for converting analog filters to digital. It includes questions on Butterworth and Chebyshev filters, FIR and IIR filter realizations, windowing techniques, and specific filter design problems. The questions aim to assess understanding of concepts and practical applications in digital signal processing.

Uploaded by

Juju Jaki
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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Department of Electronics and Communication Engineering

Subject / Code: Digital Signal Processing / EC T63


Question Bank

1. Describe the differences between Butterworth and Chebyshev filter.

2. Compare the characteristics of analog filters and digital filters


3. Outline the limitations of impulse invariance method in the design of IIR filter

4. Explain the warping effect in digital filter and also express the formula to eliminate this
effect?
5. Describe the relationship between analog and digital frequency in impulse invariance and
bilinear transformation.

6. Identify the parameters that can be obtained from the Chebyshev filter specification.

7. Convert the following analog filter into digital filter using bilinear transformation Assume
8. Distinguish between recursive realization and non-recursive realization in filter design.

9. State the advantages of FIR filter?

10. Determine the frequency response of FIR filter defined by y(n)= 0.25x(n) +x(n-1)+0.25x(n-2).
Calculate the phase delay

11. Draw Direct form-I and Direct form-II structure of second order system realization.

12. Explain Gibbs phenomenon?

13. Recall the importance of Windowing?


14. Compare the performance of various windowing technique

15. Identify the different types of structures used for the realization of IIR systems

16. Express the Hanning and Hamming window function.

17. Solve a digital Butterworth filter satisfying the following constraints with T = 1 sec using
Bilinear Transformation and realize the filter using the most convenient realization form.

 
xx  H e j  yy for aa    bb
H e   zz
j
for cc    dd

18. Design a Chebyshev filter with a maximum passband attenuation of xx dB at Ωp =yy


rad/sec and the stopband attenuation of aa dB at Ωs =bb rad/sec.

19. Employ the Direct form I, Direct form II, cascade and parallel realization of the system
described by Differential equation (y(n)= ) and identify the best
realization structure for IIR filters.

20. Apply the impulse invariant method to H(S)= and determine H (Z). T= sec

21. Design an ideal High pass filter with a frequency response


 
H d e j  xx for aa    bb
 cc for   dd
Find the value of h(n) using Hanning and Hamming window for N= . Find H(Z)

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