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&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.