- come and go

git-svn-id: http://moon:8086/svn/matlab/trunk@33 801c6759-fa7c-4059-a304-17956f83a07c
2015-04-19 18:47:46 +00:00
parent 626f3141cb
commit 792f9c50f8
8 changed files with 174 additions and 150 deletions
@@ -0,0 +1,38 @@
+function timing_coarse_eval(x)
+
+N = 1024;
+Ng = 256;
+L = Ng;
+RCWIN_ROLLOFF = 0.125;
+
+[rcwin Nt wng] = txwin_eval(N, Ng, RCWIN_ROLLOFF);
+
+% RC Windowing at TX
+% Calculate merged CP'
+% -----------------------------------------------
+% | CP |    :    :    | CP |    :    :    | CP |     
+% ----------------------------------------------------> nt
+%        x0             x1             x2
+%
+% CP' = x0 * (1-w) + x2 * w
+
+k = 1;
+for nt=N+Ng:8*(N+Ng),
+    for d=1:3,
+        Nd = N-2+d;
+        x0 = x(nt-Nd+1:nt-Nd+L);
+        x1 = x(nt+1:nt+L);
+        x2 = x(nt+Nd+1:nt+Nd+L);
+        xcps = x0 .* (1-wng') + x2 .* (wng');
+        n = 0.5*(abs(x1).^2 + abs(xcps).^2);
+        c(k, d) = sum(abs(x1 .* conj(xcps)) - 1.0*n);
+    end
+    k = k + 1;
+end
+
+[v1, n1] = max(c);
+[v2, n2] = max(v1);
+n = mod(n1(n2)-1, N+Ng)
+
+figure(1);
+plot(0:length(c)-1, 1-abs(c)); grid;