Generation of elementary signals using MATLAB code

clc;

clear all;

close all;

t=input('Enter the value of time');

f=input('Enter the value of frequency');

w=2*pi*f;

%%sinusoidal wave

y=sin(w*t);

plot(t,y);

xlabel('time');

ylabel('Amplitude');

title('sinusoidal wave');

grid on

%Exponential/Damped wave

y=exp(-0.09*t).*sin(w*t+3);

figure

plot(t,y);

xlabel('time');

ylabel('Amplitude');

title('Exponential/Damped wave');

grid on

%%Discrete exponential wave

y=exp(-0.4*t);

figure

stem(t,y);

xlabel('time');

ylabel('Amplitude');

title('Exponentialsample wave');

grid on

%%Two Exponential Curves

y1=exp(-0.4*t);

y2=exp(0.4*t);

figure

plot(t,y1,'r',t,y2,'g');

xlabel('time');

ylabel('Amplitude');

title('Two Exponential wave');

grid on

%%Two Exponential Curves including different symbols

y1=exp(-0.9*t);

y2=exp(0.9*t);

figure

plot(t,y1,'rd',t,y2,'g>');

xlabel('time');

ylabel('Amplitude');

title(' Two Exponential curves including different symbols

');

grid on

%%'Negative Exp','positive

y1=exp(-0.9*t);

y2=exp(0.9*t);

figure

plot(t,y1,'kd',t,y2,'k>');

xlabel('time');

ylabel('Amplitude');

title('Exponential curve');

grid on;

legend('negative Exp','positive Exp')

%%sinc function

y=sinc(w*t);

figure

plot(t,y);

xlabel('time');

ylabel('Amplitude');

title('sinusoidal wave');

grid on;

Result:

Enter the value of time-pi:0.01:2*pi;

Enter the value of frequency1

Result:

Enter the value of time-pi:0.01:2*pi;

Enter the value of frequency1

Result:

Enter the value of time0:.1:1

Enter the value of frequency1

Result: Enter the value of time0:.1:3

Enter the value of frequency100

Result:

Enter the value of time0:.1:1

Enter the value of frequency10

Result: Enter the value of time0:.1:1

Enter the value of frequency10

Result:

Enter the value of time-pi:0.01:2*pi

Enter the value of frequency1

 we learn how to use MATLAB and generate elementary signals of sinusoidal and exponential wave. First we write the given code in MATLAB and unexpectedly for putting some value MATLAB showed error form under-dashboard.