- added

git-svn-id: http://moon:8086/svn/matlab/trunk@156 801c6759-fa7c-4059-a304-17956f83a07c
2022-06-16 06:04:52 +00:00
parent 6d863f0539
commit 9c60c50492
6 changed files with 281 additions and 0 deletions
@@ -0,0 +1,28 @@
+function odfm_wifi()
+
+ndly = 16;
+nmav1 = 48;
+nmav2 = 64;
+
+hdly = [zeros(1,ndly) 1];
+hmav1 = ones(1,nmav1);
+hmav2 = ones(1,nmav2);
+
+x = 0.1*load_iq('/home/jens/mnt/cifs/Media/Raw/wifi_burst_5579999999_20000000_fc.wav');
+
+xdly = filter(hdly, 1, x);
+xc = x .* conj(xdly);
+xc = filter(hmav1, 1, xc);
+k = filter(hmav2, 1, abs(x).^2) + 1e-6;
+N = length(xc);
+
+plot(0:N-1, abs(xc)/nmav1*16, 0:N-1, abs(xc)./k); grid
+
+function x = load_iq(name)
+	xw = audioread(name);
+	x = xw(:,1) + j*xw(:,2);
+#	x = randn(1,400) + j*randn(1,400);
+endfunction
+
+endfunction
+