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Code: 15A04801

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B.Tech IV Year II Semester (R15) Advanced Supplementary Examinations July 2019

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ADVANCED DIGITAL SIGNAL PROCESSING – MULTIRATE & WAVELET

(Electronics and Communication Engineering)

Time: 3 hours

Max. Marks: 70

PART - A

(Compulsory Question)

Answer the following: (10 X 02 = 20 Marks)

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1. Define uncertainty principle with an expression.
2. Give the relation between dyadic MRA to filter banks.
3. Mention the applications of wavelets in Geophysical signal analysis.
4. Write the effect of cascading a (1 - z¯¹) term in the high pass analysis filter.
5. Write relation to the ideas of fractals and fractal phenomena.

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6. Write expression for Gaussian function and state its realizability.
7. State the theorem of MRA with an Expression.
8. Write any two applications of CWT in wideband signal processing.
9. Write the expression for the output of M-channel filter bank.
10. Mention the data compression standards in signal processing.

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PART - B

(Answer all five units, 5 X 10 = 50 Marks)

UNIT - I

2. With the help of an example, discuss the magnetic resonance imaging.

OR

3. Write the different types of wavelets and compare them.

UNIT - II

4. Design JPEG 2000 5/3 filter bank and write its advantages.

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OR

5. Explain the Conjugate Quadrature filter bank design with an example.

UNIT - III

6. Explain the importance of Gaussian function with necessary expressions.

OR

7. Explain filter bank interpretation of CWT with an example.

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UNIT - IV

8. Derive the condition for Orthogonal MRA with Splines.

OR

9. With help of an example, discuss the computational efficiency in realizing filter banks.

UNIT - V

10. Discuss the applications of wavelets related to bio-medical signal processing.

OR

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11. Describe the efficient signal design and approximations with an example.