JSD-in-VIatmin.md

@@ -136,3 +136,6 @@ https://gilsay.physics.gla.ac.uk/gitlab/wei.changfeng/weichangfeng_project/blob/
 From what we discussed the last time, we especially focus on the JSD(2) and JSD(3). In addition, we expect JSD(2) and JSD(3) should be obviously greater than the JSD(1).     
 Now, the first one does look quite smaller than the second one. Unluckily, I don't see a big difference between the first one and the third one.      
 
+# 4. Signal Comparison        
+Fig 4.1 
+![Signal_comparison](uploads/6d1e89bcbcc4bf758083a70034f9324e/Signal_comparison.png)