jens
1ab94a4bea
git-svn-id: http://moon:8086/svn/matlab/trunk@99 801c6759-fa7c-4059-a304-17956f83a07c
33 lines
487 B
Matlab
Executable File
33 lines
487 B
Matlab
Executable File
function lms_eval(N, mu)
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% lms_eval(N, mu)
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% Example: lms_eval(1000, 0.01)
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h = [0 0 0 1 0 0 0 0];
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w = randn(1, length(h));
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z_h = zeros(length(h)-1, 1);
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z_w = zeros(length(h)-1, 1);
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x = zeros(1, length(h));
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e_last = 0;
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p = 1.0;
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for n=1:N,
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xs = 0.1*randn();
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p = 0.99*p + 0.01*xs*xs;
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x = [xs x(1:length(x)-1)];
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d = x*h';
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y = x*w';
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e = d - y;
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w = w + mu*e*x*(1/(0.001+p));
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e_last = 0.5*e_last + 0.5*e*e;
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_e(n) = e_last;
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_p(n) = p;
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end
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plot(1:N, _e, 1:N, _p); grid;
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w=w' |