Señales y Sistemas

SEÑALES PERIÓDICAS

clc
clear
close all
A = 1;
w = 10 * pi;
rho = 0.5;
t = 0:0.001:1;
sq = A * square (w * t + rho);
plot (t, sq);



clc
clear
close all
A = 1;
w = 10* pi;
wdt =0.5;
t = 0:0.001:1;
tri = A * sawtooth (w * t + wdt);
plot (t, tri);




clc
clear
close all
A = 1;
omega = pi / 4
rho = 0.5;
n = -10:10
x = A * square (omega * n + rho);
stem (n , x)SEÑALES EXPONENCIALES

clc
clear
close all
B = 5;
a = 6;
t = 0:0.001:1;
x = B * exp (-a * t); % señal exponencial decreciente
plot (t, x);


clc
clear
close all
B = 1;
a = 5;t = 0:0.001:1;
x = B * exp ( a * t); % señal exponencial creciente
plot (t, x);


clc
clear
close all
% Señal exponencial
B = 1;
r = 0.85;
n = -10:10;
x = B * r .^ n;
stem ( n, x);SEÑALES SENOISOIDALES

clc
clear
close all
% señales senoisoidales
A = 4;
w0 = 20 * pi;
phi = pi / 6;
t = 0:0.001:1;
coseno = A * cos (w0 * t + phi);
plot (t, coseno);

grid onclc
close all

A = 0.5;
w0 = 20 * pi;
phi = pi / 2;
t = 0:0.001:1;
seno = A * sin (w0 * t + phi);
plot (t, seno);

grid on



SEÑAL SENOSOIDALES CON AMORTIGUACIONES EXPONENCIAL

clcclose all
A = 60;
w0 = 20 * pi;
phi = 0;
a = 6;
expsen = A * sin (w0 * t + phi) .* exp (-a * t);
plot (t, expsen);

grid on



clc
close all

A = 10;
w0 = 2 * pi / 12;
phi = 0;
a= -0.1;
n = -10:10;
x = A * sin (w0 * n + phi);
y = exp (a * n);
z = x .* y;
stem (n, z)

grid on


SEÑALES IMPULSO, PASO Y RAMPA

clc
close all
% Señal Impulso
u = [ zeros( 1 ,10 ),ones( 1 ,11 ) ];
n = -1:0.1:1;
plot(n,u);



close all
delta = [ zeros( 1 ,10 ), 1 , zeros( 1 ,10 ) ];
n = -10:10;
stem(n,delta);


close all

delta = [ zeros( 1 ,10 ), 1 , zeros( 1 ,10) ];
t = -1:0.1:1;
plot(t,delta)



close all

delta = [ zeros( 1 ,1000 ), 1 , zeros( 1 ,1000 ) ];
t = -1:0.001:1;
plot(t,delta)



close all

delta = [ zeros( 1 ,1000 ), 1 ,...