D 10000EE407122001 Pages: 2

Reg No.: Name:
APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY

Seventh Semester B.Tech Degree Regular and Supplementary Examination December 2021 (2015 Scheme)

Course Code: EE407
Course Name: DIGITAL SIGNAL PROCESSING

Max. Marks: 100 Duration: 3 Hours
PARTA
Answer all questions, each carries 5 marks. Marks
1 Explain the important aspects of linear filtering based on DSP (5)
2 Obtain Direct form-II realization of a discrete system represented by transfer (5)

function y(n) = 3೫% —1)+ ‏)رڈ‎ - 2) + 1) + 2८1 - 1)

3 Convert the analog filter given by transfer function Hg(s) = = toa (5)

digital filter by using bilinear transformation for T=1s

4 Explain the important steps involved in designing an FIR filter using frequency (5)
sampling technique.

5 Explain about coefficient quantisation error and its effect in digital filters (5)

6 Explain different formats of fixed point and floating point representation of (5)
binary numbers.

7 Explain briefly about Dual access RAM(DARAM) and Flash EEPROM 101 (5)
C24x processor

8 Define the function of (i) Program Counter(PC) (ii) Repeat counter(RPTC) in (5)
C24x processor.

PART छ
Answer any two full questions, each carries 10 marks.

9 Find the 8-point DFT of the sequence x(n)= {1,2,2,3,3,4,1,1} using Decimation (10)
in Time FFT Algorithm.

10 a) Perform circular convolution of the following sequences x(n) = {1,3,2,1}; (5)
X2(n) = {2,2,3,4} using (i) Concentric circle method (ii) Matrix method

b) Obtain cascade realization of the system given by transfer function (5)
242-142

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