- added

git-svn-id: http://moon:8086/svn/matlab/trunk@157 801c6759-fa7c-4059-a304-17956f83a07c
2022-06-16 06:16:47 +00:00
parent 9c60c50492
commit 579c1544b1
29 changed files with 1210 additions and 0 deletions
@@ -0,0 +1,55 @@
+function fse_eval()
+
+N = 7;
+M = 2;
+L = 5000;
+mu = 0.05;
+
+% Model source
+j = sqrt(-1);
+s(1:2:L) = 0.5-(rand(L/2,1)) + (0.5-(rand(L/2,1)))*j;
+s(2:2:L) = 2*(0.5-round(rand(L/2,1))) + 2*(0.5-round(rand(L/2,1)))*j;
+s = 1/sqrt(2)*s';
+
+
+% Model channel
+cb = 1;
+ca = [1 0.7];
+hd = zeros(N,1);
+hd(fix(N/2)) = 1;
+
+% Filter source
+r = [zeros(1,N-1) filter(cb,ca,s)']';
+awgn = 2*(0.5-randn(L+N-1,1)) + 2*(0.5-randn(L+N-1,1))*j;
+r = r  + 0.0004*awgn;
+f = [0 zeros(1, N-1)]';
+d = filter(hd,1,s(2:M:L));
+
+k = 0;
+for n=1:M:L-N
+    k = k + 1;
+    x = r(N+n-1:-1:n);
+    y(k) = f'*x;
+    e(k) = d(k) - y(k);
+    f = f + mu*conj(e(k))*x;
+end;    
+ss = filter(f,1,r);
+
+close all;
+figure(1)
+plot(abs(e))
+grid
+
+figure(2)
+plot(r,'g+')
+hold on 
+plot(ss,'bx')
+plot(s,'ro')
+hold off
+grid
+
+figure(3)
+plot(1:k, abs(y));
+grid
+
+f