DSP Lab Manual (10ECL57) - VTU Syllabus

K. S. SCHOOL OF ENGINEERING & MANAGEMENT # 15, Mallasandra Mallasandra,, Off Kanakapur Kanakapura a Road, Bangal Bangalore ore-56 -56006 0062, 2, Karnat Karnataka aka,, India. India.

DEPARTMENT OF ELECTRONICS & COMMUNICATION ENGINEERING

Digit igital al Sig Signa nall Pro Proces cessing ing Lab Manu Manua al Sub Code: 10ECL57 Sem:V

Prepa repare red d By Mr. Ravikiran B. A., Asst. Professor Mrs. Vidhya R., Asst. Professor

Table of Contents PART  –  A

1

Verification of Sampling theorem.

1

2

Impulse response of a given system

4

3

Linear convolution of two given sequences.

7

4

Circular co convolution of two given sequences

11

5

Autocorrelation of a given sequence and verification of its properties.

15

6

Cross-correlation of given sequences and verification of  its properties.

18

7

Solving a given difference equation.

21

8

Computatio Computation n of N point DFT of a given sequence sequence and to plot magnitude and phase spectrum.

23

9

Linear convolution of two sequences using DFT and IDFT.

26

10

Circular convolution of two given sequences using DFT and IDFT

29

11

Design Design and implementat implementation ion of FIR filter to meet given given specifications.

32

12

Design and implementation of IIR filter to meet given specifications.

36

PART  –  B

About the DSP Trainer Kit

44

Using Code Composer Studio

47

1

Linear convolution of two given sequences.

56

2

Circular co convolution of two given sequences

58

3

Computation of N point DFT of a given sequence.

60

4

Impulse Response of the First Order and Second Order Systems

62

Viva Questions

64

th

DSP Laboratory (10ECL57)

5 Sem

KSSEM, Bangalore

PROGRAM 1 VERIFICATION VERIFICATION OF SAMPLING THEOREM Aim: To write the MATLAB code for verifying Sampling Theorem. Generate Generate a sinuso sinusoidal idal wave of 1kHz. 1kHz. Calcu Calculate late the Nyquist Nyquist frequency frequency,, and and verify verify Sampling Theorem, showing output waveforms for undersampled, oversampled and right sampled cases.

Theory: Sampling is the process process of converting an continuous time signal signal into a discrete time signal. In sampling, the values values of the continuous time signal signal is recorded at at discrete intervals of of time (usually equidistant). equidistant). The number of samples samples taken during one second is called called the sampling rate. Sampling is described by the relation:

( )  =

(

)

−∞ <