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ex11: terminated. (for real)

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rainydaysavings 2020-10-24 18:20:32 +01:00
parent 1550091fd0
commit c31b5a86bb
1 changed files with 13 additions and 18 deletions
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31
TP1b/DiogoEliseuHugo_TP2_11.m
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@ -2,24 +2,19 @@
clear ; close all; clc clear ; close all; clc
%% Exercício 11 %% Exercício 11
n = 0:255; %% Inicialização do ambiente n = 0:255;
x = cos(20*pi*n/256)+cos(200*pi*n/256);
cx1 = [0.5,0.4,0.3];
y1 = filter(cx1,1,x);
x = cos((20 * pi * n)/256) + cos((200 * pi * n)/256); cx2 = [0.4,0.5,0.4];
cy2 = [1,-0.5,0.4];
y2 = filter(cx2,cy2,x);
figure subplot(3,1,1),plot(n,x)
subplot(3, 1, 1) xlabel('n'),ylabel('Amplitude'),title('x[n]')
stem(n, x) subplot(3,1,2),plot(n,y1)
xlabel('n'),ylabel('Amplitude'),title('y1[n]')
subplot(3, 1, 2) subplot(3,1,3),plot(n,y2)
y1 = 0.5 * x + 0.4 * [x(1, 2:size(x, 2)) 0] + 0.3 * [x(1, 3:size(x, 2)) 0 0]; xlabel('n'),ylabel('Amplitude'),title('y2[n]')
stem(n, y1)
subplot(3, 1, 3)
y2 = zeros(size(n));
y2(1) = y1(1);
y2(2) = y1(2);
for i = 3:255
y2(i) = y1(i) + 0.5 * y2(i - 1) - 0.4 * y2(i - 2);
end
stem(n, y2)