From: jeroen@nospam.please   
      
   On 2014-01-24 15:38, Jeroen Belleman wrote:   
   >   
   > Different terms, but same argument: If you think of the measurements   
   > as the sum of a coherent signal and an incoherent noise part, the   
   > SD of the signal grows with the square of the number sweeps,   
   > while the noise grows linearly.   
      
   Hum, no I got that wrong: It's the _variance_ that does that.   
      
   The _SD_ of the signal grows linearly, while that of the   
   noise goes up with the square root.   
      
   Sorry about that.   
      
   Jeroen Belleman   
      
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