The document outlines a digital signal processing experiment focused on generating basic signals, including unit impulse, unit step, and unit ramp signals, using MATLAB programs. It details the coding steps and provides instructions for plotting these signals, along with exercises related to continuous and discrete signal generation. Additionally, it includes assignment questions that cover topics such as signal definitions, programming tasks for exponential and cosine signals, and circuit analysis.

1. Digital Signal Processing
Experiment 1

2. GENERATION OF BASIC SIGNALS
(a). Program for the generation of UNIT impulse signal
clc;
close all;
clear all;
t=-2:1:2; % defining time axis and samples
y=[zeros(1,2),ones(1,1),zeros(1,2)] %defining magnitude at different
samples
stem(t,y); %plot discrete signal
xlabel('samples----')
Ylabel(‘magnitude’) % assigning labels to x and y axis
title('unit impulse'); %giving title

3. n = [-5:5];
imp = zeros(1,length(n));
imp(n==0) = 1;
stem(n,imp) %plot discrete signal
axis([-5 5 -2 2])
xlabel('samples----')
Ylabel(‘magnitude’) % assigning labels to x and y axis
title('unit impulse');

4. (b) Program for the generation of UNIT step signal
clc;
close all;
clear all;
n=input('enter the n value = ');
t=0:1:n-1;
y= ones(1,n);
stem(t,y);
axis([-5 5 -5 5])
xlabel('samples----')
ylabel('Magnitude')
title('unit step')

5. (b) Program for the generation of UNIT step signal
clc;
close all;
clear all;
n=[-5:5];
ramp = (n>=0).*n;
stem(n,ramp);
xlabel('samples----')
ylabel('Magnitude')
title('unit ramp');

6. Ramp signal using for loop
• for n = -4:4
• if n>= 0
• stem(n,n);
• hold on;
• else
• stem(1,0);
• hold on
• end
• end

7. Generate continuous time sinusoidal signal,
Discrete time cosine signal
clc;
close all;
clear all;
t=0:.01:pi;
y= sin(2*pi*t);
plot(t,y);
ylabel('amp...');
xlabel(‘samples...');
title('sin signal')

8. Assignment
Q1. Define and Compare C.T.S & D.T.S
Q.2 write a program to generate exponential and cosine signal.
Q.3. Write a program to scale, shift and inversion of various basic signals.
Q.4 write a matlab program to find the current values in the given circuit.
V1 = 20 V V2 = 12 V3 = 40
R1 = 18 R2 = 10 R3 = 16
R3 = 6 R5 = 15 R6 = 8
R7 = 12 R8 = 14
Q.5 Define Stem, Plot, Plot3,fplot, ezplot, linspace, grid,mesh and legend