My Profile
Active Members
TodayLast 7 Days
more...
Awards & Gifts
Online Exams
Fresher Jobs
Our fresher job section is exclusively for fresh graduates! Find jobs for freshers in major Indian
cities including Bangalore, Chennai, Hyderabad, Pune or Kochi
Resources
Find educational articles, blogs, discussion threads and other resources.
Colleges
Find details about any college in India or search for courses.
|
Download Model question papers & previous years question papers
|
Posted By: CONFIDENCE IS THE COMPANION OF SUCCESS Member Level: Diamond Posted Date: 17 Apr 2008
|
2007 Anna University B.Tech Information Technology Digital Signal Processing Question paper
|
|
|
ANNA UNIVERSITY :: CHENNAI – 600 025
MODEL QUESTION PAPER
B.TECH. INFORMATION TECHNOLOGY
IF351 – DIGITAL SIGNAL PROCESSING
Time : 3 Hours Max. Marks : 100
Answer all Questions
PART – A (10 X 2 = 20 MARKS)
1. State and prove the convolution property of Z transform.
2. Check the system is linear or not y(n) = x(n)+ay(n-1)
3. Write equations for finding DFT and IDFT using Z transform.
4. Draw the radix 2 butterfly structure for DIF
5. Draw the implementation for the generalized for IIR filter using direct form II.
6. Explain how the addition and multiplication of (H1, H2) impulse responses implemented in filter design
7. Write equations for Hanning and Blackman window.
8. Why frequency prewarping procedure is adopted in the design of IIR filter?
9. Write two advantages of musical sound processing and briefly explain.
10. Explain the effects due to upsampling.
PART - B (5 x 16 = 80 Marks)
11.i) The impulse response of a linear TI system is h(n) = {1, 0, 1, -1}. Find the response of the system to the input signal x(n) = {1, 0, 2, 1}.
ii) Check whether the system y(n) = x(n) – x(n-1) is LTI and stable.
12.a) Develop and draw the 8 point radix-2 DIT FFT algorithm for DFT computation.
(OR)
12.b) Compute the DFT of the following sequence
x(n) = 0 0£ n £ 2
= 1 3£ n £ 6
= 0 n=7
Plot magnitude and phase spectra
13.a) Design a LPF with following specifications. Use Hamming window and at least 8 points.
(OR)
13.b)i) Obtain H(z) from H(s) when T = 1 sec.
ii) Design a digital BPF using w1 & w2 as cutoff frequencies
14.a)i) Perform the following using Floating Point arithmetic.
1.5 x 1.75 and 1.5 x 1.75
ii) Realize the following H(z) given by
using cascade and Parallel form with Direct form-I.
(OR)
14.b)i) What is meant by quantization error? Explain briefly.
ii) Realize the following filter using cascade technique with DF-I and DF-II.
15.a) Briefly explain
a. Interpolator
b. Decimator
c. Effects due to sampling rate conversion
(OR)
15.b)i) Write a note on Musical sound processing
ii) Explain how the data compression is achieved in speech signal and discuss a technique to check the quality.
******
Return to question paper search
|
|
|
Submit Previous Years University Question Papers and make money from adsense revenue sharing program
Are you preparing for a university examination? Download model question papers
and practise before you write the exam.
|
Watch TV Channels
Watch Asianet TV onlineKairali TV in InternetSurya TV onlineAmritha TV Channel
|