Digital Signal Processing (2171708)  

List of Practicals

Sr. Practical Title
1
To represent basic signals (Unit Step, unit impulse, ramp, exponential).
2
To represent sine, and cosine signals.
3
To develop program for discrete convolution.
4
To develop program for convolution without direct matlab command.
5
To develop program for discrete correlation
6
(a) Determine the Impulse response for the system described by the second order difference equation ,y(n) = x(n) + 0.6y(n-1) – 0.08y(n-2) (b) Also obtain the Pole-Zero plot for the same and hence comment on the ROC and stability of the system. (c) Express following Z transform in factored form, plot its poles & zeros, and determine its ROCs.
7
To understand sampling theorem
8
To design digital IIR filters
9
To design digital FIR filter

Open Ended Problem
1. Design a 25-tap Bandpass Filter for the following specifications:
Cut-off frequencies : 0.25pi and 0.75pi
Windowing: : Rectangular and Hamming, Order: : 25
Compare different Windowing Techniques and comment on the same.
2. Design Butterworth LPF for following specifications:
Passband Attenuation: 0.4dB, Stopband Attenuation: 35 dB ,Passband frequency : your Roll no + 400Hz,Stopband frequency : your Roll no + 800 Hz ,Sampling frequency : 3000 Hz
Major Equipment
Computers, DSP kits, Simulation software like Scilab/ Matlab
Other
NPTEL Website
MIT Open Course Ware (http://ocw.mit.edu/resources)