Sorry Zohar but can you explain to me what you mean by 'not using first element' ? And why did you start n from 2 , and not from 1 ? I am not good at MATLAB at all ...
How to plot this signal?
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Hi everyone, Can anybody tell me how to define this function and plot it in Matlab?
X(n) = X(n-1)+ 0.9 e(n)
where e(n) is a white,gaussian noise signal, and X(n) is a stationary, gaussian AR(1) process
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zohar
le 20 Fév 2011
Hi Negar
l = 1000;% length of the signal
x = zeros(l,1);
Noise = 0.9*randn(l,1); % not using first element
% not using first element
% assuming x(0) = 0 or somthing else
for n = 2: length(x)
x(n) = x(n-1)+ Noise(n);
end
% or you can use
x (2:length(x)) = x (1:length(x)-1) + Noise(2:length(x));
plot(1:l,x)
I hope it's help you.
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zohar
le 20 Fév 2011
Hi Negar
l = 1000;% length of the signal
x = zeros(l,1);
Noise = 0.9*randn(l,1);
% sorry I meant the first element of x, x(1) not x(0)
%assuming x(1) = 0 or somthing else
for n = 2: length(x)
x(n) = x(n-1)+ Noise(n);
end
% or you can use
x (2:length(x)) = x(1:length(x)-1) + Noise(2:length(x));
plot(1:l,x)
I start with n=2 because x(1) allready defined 0.
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