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\subsubsection{Position}  \subsubsection{Efficiency}  We will use $\eta_c$ as correlator efficiency in this document, with   \begin{equation}\label{eq:antenna_efficiency} \begin{equation}\label{eq:correlator_efficiency}  \eta_c(t_{int}) = \frac{\text{correlator sensitivity}}{\text{sesitivity of a perfect analog correlator having the same } t_{int}}  \end{equation}   as defined in \cite{sensitivity}. 
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