define an equation on Matlab
20 ビュー (過去 30 日間)
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Hi
there is an equation like this for my project
I really can't define it
so this is my equation:
y(t)+y(t-1)+y(t-2)=u(t-1)+u(t-2)+e(t)
that y(t) is output
u(t) is input
& e(t) is error
thanx
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回答 (1 件)
Ameer Hamza
2020 年 12 月 2 日
This is a difference equation. Simplest way is to use a for-loop
u = ones(100, 1); % using constant input;
e = rand(101, 1); % generating a random error vector
y = zeros(101, 1); % pre-allocating output vector
y(1) = 0;
y(2) = 0; % initial conditions
for t = 3:numel(y)
y(t) = u(t-1)+u(t-2)+e(t)-y(t-1)-y(t-2);
end
参考
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Help Center および File Exchange で Ordinary Differential Equations についてさらに検索
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