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\section{Overview}\label{sec:intro}  This document presents a parametric model to help design an Interferometric Array. It describes the design parameters in \S~\ref{var} \S~\ref{sec:var}  and the system performance objectives in \S~\ref{obj}, \S~\ref{sec:obj},  and the relationship between them. A python code used to generate data in the format required for visual analysis of array design options performance is presented in \S~\ref{python}. \S~\ref{sec:python}.  The python code is consistent with parameters and objectives selection in sections 2 and 3, and the mathematical relationships between them. \section{Variables}\label{sec:var}  This section aims to include all relevant design parameters that might influence the selected performance objectives in section 4.  \subsection{Antenna Aspects} 
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