BPUT previous year question paper Of INTRODUCTION TO DIGITAL SIGNAL PROCESSING, 7th Semester 2011

BPUT previous year question paper
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BPUT previous year question paper

Registration No.:

Total number of printed pages—3 B. Tech

FECS 6401

Seventh Semester Examination — 2011

INTRODUCTION TO DIGITAL SIGNAL PROCESSING

Full Marks—70

Time: 3- Hours

Answer Question No. 1 which ¡s compulsory and any five from the rest.

The figures in the right-hand margin indicate marks.

Answer the following questions:. 2x10

(a) State whether the following system is linear or not y (t) = 2÷ x (t).

(b) State whether a unit ramp sequence is a power signal or an energy signal.

(c) State whether the following signal is periodic or not, if periodic, find the

Fundamental period: x (n) = cos (1.0472n) + sin (2.3562n).

(d) Find the z-transform of the signal x (n) = u (—n). Also state the ROC.

(e) Write down the relationship between DFT and z-transform.

(f) What do you mean by twiddle factor and write down its two properties.

(g) How many complex additions and multiplications are required to compute?

64-point DFT via decimation-in-frequency FFT algorithm?

(h) Write down two main advantages of FIR filter over IIR filter.

(i) Why impulse-invariant method is not preferred in the design of IIR filter other than Low Pass Filter?

(j) Give the bilinear transform equation between s-plane and z-plane.

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Introduction to Digital Signal Processing
 

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