M100 Band3 Combine 4.2.2: Difference between revisions

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rms noise in a single channel for a single visibility is:
rms noise in a single channel for a single visibility is:
<math>  
<math>  
\sigma_{ij}=\frac{2k}{A_{eff}}  
\sigma_{ij}=\frac{2k}{A_{eff}}  
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\sqrt{\frac{T_{sys,i} T_{sys,j}}{\Delta\nu_{ch} t_{ij}}}
\sqrt{\frac{T_{sys,i} T_{sys,j}}{\Delta\nu_{ch} t_{ij}}}
</math>
</math>




Where k is Boltzmann's constant, A_eff is the effective antenna area,  
Where k is Boltzmann's constant, A_eff is the effective antenna area,  
delta_nu is the channel width, and t_{ij} is the integration time  
&Delta&nnu is the channel width, and t_{ij} is the integration time  
per visibility.
per visibility.

Revision as of 15:12, 17 June 2013

Overview

rms noise in a single channel for a single visibility is: [math]\displaystyle{ \sigma_{ij}=\frac{2k}{A_{eff}} }[/math] [math]\displaystyle{ \sqrt{\frac{T_{sys,i} T_{sys,j}}{\Delta\nu_{ch} t_{ij}}} }[/math]


Where k is Boltzmann's constant, A_eff is the effective antenna area, &Delta&nnu is the channel width, and t_{ij} is the integration time per visibility.