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\section{Objectives (Most relevant Array Performance Parameters)}  This section aims to include all the array performance objective that might be influenced by design choices.  \subsection{Minimize Brightness Sensitivity Limit}  If we assume  a system temperature $T_{sys}$, the same for each aperture, and a correlator accumulation time $\tau_{acc}$ are assumed, $\tau_{acc}$,  and letting let  $\eta_s$ be the system efficiency, thenin  the weak-source limit in  the sensitivity of a synthesis image of a single polarization is \begin{equation}\label{eq:sens}  \Delta I_m = {\frac{1}{\eta_s }}{\frac{T_{sys}}{K\sqrt{2 \Delta \nu \tau_{acc}}}}   \end{equation} 
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