Download JNTUA M.Tech 1st Sem 2019 Feb Regular and Supply 17D06108 Advanced Digital Signal Processing Question Paper

Download JNTUA (JNTU Anantapur) M.Tech ( Master of Technology) 1st Semester 2019 Feb Regular and Supply 17D06108 Advanced Digital Signal Processing Previous Question Paper

Code: 17D06108

M.Tech I Semester Regular & Supplementary Examinations January/February 2019
ADVANCED DIGITAL SIGNAL PROCESSING
(Common to DECS, ECE & DSCE)
(For students admitted in 2017 & 2018 only)

Time: 3 hours Max. Marks: 60

Answer all the questions

*****
1 Explain about multistage implementation of sampling rate conversion.
OR
2 (a) For the following multi rate digital signal processing system, determine the output y(n) in terms
of input x(n).


(b) An analog filter has the following system function ?? ( ?? ) = 6/( ?? + 0.1))
2
+ 9, convert in to digital
filter using backward difference.

3 Explain about analog to digital conversion. Also explain the effects of oversampling.
OR
4 Explain how multirate signal processing is used in the implementation of phase shifters.

5 In Welch method, calculate the variance of the Welch power spectrum estimate with the Bartlett
window if there is 50% overlap.
OR
6 The Bias and variance of the modified periodogram is better than that of the ordinary
periodogram. Justify your answer.

7 Explain the lattice filter realization of IIR filters.
OR
8 Derive the Wiener-Hopf equations for FIR wiener filter and also explain how it acts as a
predictor.

9 Briefly describe the Yule Walker method of spectrum estimation for ARMA process.
OR
10 (a) State and prove Wiener-Khintchine theorem.
(b) Find the auto correlation to the PSD: ?? ( ?? ?? ?? ) = 3 + 2 ?? ???? ?? .

*****
z
-1

x(n)
z
-1

? 2
? 2
? 2
? 2
y(n)
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