This repository has been archived on 2023-08-20. You can view files and clone it, but cannot push or open issues or pull requests.
2020-10-04 17:09:12 +01:00
|
|
|
%% Inicialização do ambiente
|
|
|
|
|
clear ; close all; clc
|
|
|
|
|
|
|
|
|
|
%% Exercício 1
|
|
|
|
|
n = -20:20; % janela
|
|
|
|
|
|
|
|
|
|
% Impulso def
|
2020-10-01 15:59:02 +01:00
|
|
|
impulso = zeros(1,41);
|
|
|
|
|
impulso(21) = 1;
|
|
|
|
|
|
2020-10-05 21:15:29 +01:00
|
|
|
% Degrau def
|
2020-10-04 17:09:12 +01:00
|
|
|
degrau = (n >= 0);
|
2020-10-01 15:59:02 +01:00
|
|
|
|
2020-10-04 17:09:12 +01:00
|
|
|
% Figura com os resultados
|
2020-10-01 15:59:02 +01:00
|
|
|
figure
|
2020-10-04 17:09:12 +01:00
|
|
|
% Plot da sequência X
|
|
|
|
|
subplot(2,2,1:2)
|
|
|
|
|
x = fun_x(n);
|
|
|
|
|
stem(n, x)
|
2020-10-08 15:42:51 +01:00
|
|
|
title('x')
|
2020-10-04 17:09:12 +01:00
|
|
|
% Plot do impulso
|
|
|
|
|
subplot(2,2,3)
|
2020-10-01 15:59:02 +01:00
|
|
|
stem(n, impulso)
|
2020-10-08 15:42:51 +01:00
|
|
|
title('\delta')
|
2020-10-04 17:09:12 +01:00
|
|
|
% Plot do degrau
|
|
|
|
|
subplot(2,2,4)
|
2020-10-01 15:59:02 +01:00
|
|
|
stem(n, degrau)
|
2020-10-08 15:42:51 +01:00
|
|
|
title('\mu')
|
2020-10-01 15:59:02 +01:00
|
|
|
|
2020-10-04 17:09:12 +01:00
|
|
|
% Definição da sequência X
|
2020-10-01 15:59:02 +01:00
|
|
|
function p = fun_x(N)
|
|
|
|
|
A=1.8;
|
|
|
|
|
f=0.05;
|
|
|
|
|
phi=0.5*pi;
|
|
|
|
|
p=A*cos(2*pi*f*N+phi);
|
2020-10-08 15:32:24 +01:00
|
|
|
end
|
