- consider signal for process bits

- decreased rho

git-svn-id: http://moon:8086/svn/matlab/trunk@108 801c6759-fa7c-4059-a304-17956f83a07c

garage_ip.m

@@ -95,7 +95,7 @@ bits = [];
 v_min = 0;								% Threshold max
 v_max = 0;								% Threshold min
 hyst_thr = 0.5;							% Threshold hysteresis
-rho_thr = 1e-5;							% Threshold forgetting factor
+rho_thr = 1e-4;							% Threshold forgetting factor
 alpha_thr = 0.1;						% Min/Max update factor
 k_leadLag = params.loopFilterGain;		% Overall loopfilter gain (scales k_lead and k_lag)
 k_lead = 0.1;							% Symbol syncronizer loop filter lead 
@@ -136,14 +136,15 @@ while ns < N
 		end
 	end
 	
+  isSignal = (v_thr >=loopThreshold);
 	% Calc error
 	err = 0;
-	if (bitChg && (v_thr >=loopThreshold))
+	if (bitChg && isSignal)
 		err = -(count - fix(numSamplesPerSym/2));
 	end
 
 	% Sample bit at baud rate = fs/numSamplesPerSym
-	if count == 0
+	if count == 0 && isSignal
 		smp = [smp ys];
 		smp_n = [smp_n n];
 		bits = [bits bit];